/*
    Redactor v10.1.1
    Updated: April 28, 2015

    http://imperavi.com/redactor/

    Copyright (c) 2009-2015, Imperavi LLC.
    License: http://imperavi.com/redactor/license/

    Usage: $('#content').redactor();
*/

(function($)
{
    'use strict';

    if (!Function.prototype.bind)
    {
        Function.prototype.bind = function(scope)
        {
            var fn = this;
            return function()
            {
                return fn.apply(scope);
            };
        };
    }

    var uuid = 0;

    // Plugin
    $.fn.redactor = function(options)
    {
        var val = [];
        var args = Array.prototype.slice.call(arguments, 1);

        if (typeof options === 'string')
        {
            this.each(function()
            {
                var instance = $.data(this, 'redactor');
                var func;

                if (options.search(/\./) != '-1')
                {
                    func = options.split('.');
                    if (typeof instance[func[0]] != 'undefined')
                    {
                        func = instance[func[0]][func[1]];
                    }
                }
                else
                {
                    func = instance[options];
                }

                if (typeof instance !== 'undefined' && $.isFunction(func))
                {
                    var methodVal = func.apply(instance, args);
                    if (methodVal !== undefined && methodVal !== instance)
                    {
                        val.push(methodVal);
                    }
                }
                else
                {
                    $.error('No such method "' + options + '" for Redactor');
                }
            });
        }
        else
        {
            this.each(function()
            {
                $.data(this, 'redactor', {});
                $.data(this, 'redactor', Redactor(this, options));
            });
        }

        if (val.length === 0) return this;
        else if (val.length === 1) return val[0];
        else return val;

    };

    // Initialization
    function Redactor(el, options)
    {
        return new Redactor.prototype.init(el, options);
    }

    // Functionality
    $.Redactor = Redactor;
    $.Redactor.VERSION = '10.1.1';
    $.Redactor.modules = ['alignment', 'autosave', 'block', 'buffer', 'build', 'button',
                          'caret', 'clean', 'code', 'core', 'dropdown', 'file', 'focus',
                          'image', 'indent', 'inline', 'insert', 'keydown', 'keyup',
                          'lang', 'line', 'link', 'list', 'modal', 'observe', 'paragraphize',
                          'paste', 'placeholder', 'progress', 'selection', 'shortcuts',
                          'tabifier', 'tidy',  'toolbar', 'upload', 'utils', 'linkify'];

    $.Redactor.opts = {

        // settings
        lang: 'en',
        direction: 'ltr', // ltr or rtl

        plugins: false, // array

        focus: false,
        focusEnd: false,

        placeholder: false,

        visual: true,
        tabindex: false,

        minHeight: false,
        maxHeight: false,

        linebreaks: false,
        replaceDivs: true,
        paragraphize: true,
        cleanStyleOnEnter: false,
        enterKey: true,

        cleanOnPaste: true,
        cleanSpaces: true,
        pastePlainText: false,

        autosave: false, // false or url
        autosaveName: false,
        autosaveInterval: 60, // seconds
        autosaveOnChange: false,
        autosaveFields: false,

        linkTooltip: true,
        linkProtocol: 'http',
        linkNofollow: false,
        linkSize: 50,

        imageEditable: true,
        imageLink: true,
        imagePosition: true,
        imageFloatMargin: '10px',
        imageResizable: true,

        imageUpload: null,
        imageUploadParam: 'file',

        uploadImageField: false,

        dragImageUpload: true,

        fileUpload: null,
        fileUploadParam: 'file',

        dragFileUpload: true,

        s3: false,

        convertLinks: true,
        convertUrlLinks: true,
        convertImageLinks: true,
        convertVideoLinks: true,

        preSpaces: 4, // or false
        tabAsSpaces: false, // true or number of spaces
        tabKey: true,

        scrollTarget: false,

        toolbar: true,
        toolbarFixed: true,
        toolbarFixedTarget: document,
        toolbarFixedTopOffset: 0, // pixels
        toolbarExternal: false, // ID selector
        toolbarOverflow: false,

        source: true,
        buttons: ['html', 'formatting', 'bold', 'italic', 'deleted', 'unorderedlist', 'orderedlist',
                  'outdent', 'indent', 'image', 'file', 'link', 'alignment', 'horizontalrule'], // + 'underline'

        buttonsHide: [],
        buttonsHideOnMobile: [],

        formatting: ['p', 'blockquote', 'pre', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6'],
        formattingAdd: false,

        tabifier: true,

        deniedTags: ['script', 'style'],
        allowedTags: false, // or array

        paragraphizeBlocks: ['table', 'div', 'pre', 'form', 'ul', 'ol', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6', 'dl', 'blockquote', 'figcaption',
                            'address', 'section', 'header', 'footer', 'aside', 'article', 'object', 'style', 'script', 'iframe', 'select', 'input', 'textarea',
                            'button', 'option', 'map', 'area', 'math', 'hr', 'fieldset', 'legend', 'hgroup', 'nav', 'figure', 'details', 'menu', 'summary', 'p'],

        removeComments: false,
        replaceTags: [
            ['strike', 'del']
        ],
        replaceStyles: [
            ['font-weight:\\s?bold', "strong"],
            ['font-style:\\s?italic', "em"],
            ['text-decoration:\\s?underline', "u"],
            ['text-decoration:\\s?line-through', 'del']
        ],
        removeDataAttr: false,

        removeAttr: false, // or multi array
        allowedAttr: false, // or multi array

        removeWithoutAttr: ['span'], // or false
        removeEmpty: ['p'], // or false;

        activeButtons: ['deleted', 'italic', 'bold', 'underline', 'unorderedlist', 'orderedlist',
                        'alignleft', 'aligncenter', 'alignright', 'justify'],
        activeButtonsStates: {
            b: 'bold',
            strong: 'bold',
            i: 'italic',
            em: 'italic',
            del: 'deleted',
            strike: 'deleted',
            ul: 'unorderedlist',
            ol: 'orderedlist',
            u: 'underline'
        },

        shortcuts: {
            'ctrl+shift+m, meta+shift+m': { func: 'inline.removeFormat' },
            'ctrl+b, meta+b': { func: 'inline.format', params: ['bold'] },
            'ctrl+i, meta+i': { func: 'inline.format', params: ['italic'] },
            'ctrl+h, meta+h': { func: 'inline.format', params: ['superscript'] },
            'ctrl+l, meta+l': { func: 'inline.format', params: ['subscript'] },
            'ctrl+k, meta+k': { func: 'link.show' },
            'ctrl+shift+7':   { func: 'list.toggle', params: ['orderedlist'] },
            'ctrl+shift+8':   { func: 'list.toggle', params: ['unorderedlist'] }
        },
        shortcutsAdd: false,

        // private
        buffer: [],
        rebuffer: [],
        emptyHtml: '<p>&#x200b;</p>',
        invisibleSpace: '&#x200b;',
        imageTypes: ['image/png', 'image/jpeg', 'image/gif'],
        indentValue: 20,
        verifiedTags:       ['a', 'img', 'b', 'strong', 'sub', 'sup', 'i', 'em', 'u', 'small', 'strike', 'del', 'cite', 'ul', 'ol', 'li'], // and for span tag special rule
        inlineTags:         ['strong', 'b', 'u', 'em', 'i', 'code', 'del', 'ins', 'samp', 'kbd', 'sup', 'sub', 'mark', 'var', 'cite', 'small'],
        alignmentTags:      ['P', 'H1', 'H2', 'H3', 'H4', 'H5', 'H6',  'DL', 'DT', 'DD', 'DIV', 'TD', 'BLOCKQUOTE', 'OUTPUT', 'FIGCAPTION', 'ADDRESS', 'SECTION', 'HEADER', 'FOOTER', 'ASIDE', 'ARTICLE'],
        blockLevelElements: ['PRE', 'UL', 'OL', 'LI'],


        // lang
        langs: {
            en: {
                html: 'HTML',
                video: 'Insert Video',
                image: 'Insert Image',
                table: 'Table',
                link: 'Link',
                link_insert: 'Insert link',
                link_edit: 'Edit link',
                unlink: 'Unlink',
                formatting: 'Formatting',
                paragraph: 'Normal text',
                quote: 'Quote',
                code: 'Code',
                header1: 'Header 1',
                header2: 'Header 2',
                header3: 'Header 3',
                header4: 'Header 4',
                header5: 'Header 5',
                bold: 'Bold',
                italic: 'Italic',
                fontcolor: 'Font Color',
                backcolor: 'Back Color',
                unorderedlist: 'Unordered List',
                orderedlist: 'Ordered List',
                outdent: 'Outdent',
                indent: 'Indent',
                cancel: 'Cancel',
                insert: 'Insert',
                save: 'Save',
                _delete: 'Delete',
                insert_table: 'Insert Table',
                insert_row_above: 'Add Row Above',
                insert_row_below: 'Add Row Below',
                insert_column_left: 'Add Column Left',
                insert_column_right: 'Add Column Right',
                delete_column: 'Delete Column',
                delete_row: 'Delete Row',
                delete_table: 'Delete Table',
                rows: 'Rows',
                columns: 'Columns',
                add_head: 'Add Head',
                delete_head: 'Delete Head',
                title: 'Title',
                image_position: 'Position',
                none: 'None',
                left: 'Left',
                right: 'Right',
                center: 'Center',
                image_web_link: 'Image Web Link',
                text: 'Text',
                mailto: 'Email',
                web: 'URL',
                video_html_code: 'Video Embed Code or Youtube/Vimeo Link',
                file: 'Insert File',
                upload: 'Upload',
                download: 'Download',
                choose: 'Choose',
                or_choose: 'Or choose',
                drop_file_here: 'Drop file here',
                align_left: 'Align text to the left',
                align_center: 'Center text',
                align_right: 'Align text to the right',
                align_justify: 'Justify text',
                horizontalrule: 'Insert Horizontal Rule',
                deleted: 'Deleted',
                anchor: 'Anchor',
                link_new_tab: 'Open link in new tab',
                underline: 'Underline',
                alignment: 'Alignment',
                filename: 'Name (optional)',
                edit: 'Edit',
                upload_label: 'Drop file here or '

            }
        },

        linkify: {
            regexps: {
                youtube: /https?:\/\/(?:[0-9A-Z-]+\.)?(?:youtu\.be\/|youtube\.com\S*[^\w\-\s])([\w\-]{11})(?=[^\w\-]|$)(?![?=&+%\w.\-]*(?:['"][^<>]*>|<\/a>))[?=&+%\w.-]*/ig,
                vimeo: /https?:\/\/(www\.)?vimeo.com\/(\d+)($|\/)/,
                image: /((https?|www)[^\s]+\.)(jpe?g|png|gif)(\?[^\s-]+)?/ig,
                url: /(https?:\/\/(?:www\.|(?!www))[^\s\.]+\.[^\s]{2,}|www\.[^\s]+\.[^\s]{2,})/ig,
            }
        },

        codemirror: false
    };

    // Functionality
    Redactor.fn = $.Redactor.prototype = {

        keyCode: {
            BACKSPACE: 8,
            DELETE: 46,
            DOWN: 40,
            ENTER: 13,
            SPACE: 32,
            ESC: 27,
            TAB: 9,
            CTRL: 17,
            META: 91,
            SHIFT: 16,
            ALT: 18,
            RIGHT: 39,
            LEFT: 37,
            LEFT_WIN: 91
        },

        // Initialization
        init: function(el, options)
        {
            this.$element = $(el);
            this.uuid = uuid++;

            // if paste event detected = true
            this.rtePaste = false;
            this.$pasteBox = false;

            this.loadOptions(options);
            this.loadModules();

            // formatting storage
            this.formatting = {};

            // block level tags
            $.merge(this.opts.blockLevelElements, this.opts.alignmentTags);
            this.reIsBlock = new RegExp('^(' + this.opts.blockLevelElements.join('|' ) + ')$', 'i');

            // setup allowed and denied tags
            this.tidy.setupAllowed();

            // setup denied tags
            if (this.opts.deniedTags !== false)
            {
                var tags = ['html', 'head', 'link', 'body', 'meta', 'applet'];
                for (var i = 0; i < tags.length; i++)
                {
                    this.opts.deniedTags.push(tags[i]);
                }
            }

            // load lang
            this.lang.load();

            // extend shortcuts
            $.extend(this.opts.shortcuts, this.opts.shortcutsAdd);

            // start callback
            this.core.setCallback('start');

            // build
            this.start = true;
            this.build.run();
        },

        loadOptions: function(options)
        {
            this.opts = $.extend(
                {},
                $.extend(true, {}, $.Redactor.opts),
                this.$element.data(),
                options
            );
        },
        getModuleMethods: function(object)
        {
            return Object.getOwnPropertyNames(object).filter(function(property)
            {
                return typeof object[property] == 'function';
            });
        },
        loadModules: function()
        {
            var len = $.Redactor.modules.length;
            for (var i = 0; i < len; i++)
            {
                this.bindModuleMethods($.Redactor.modules[i]);
            }
        },
        bindModuleMethods: function(module)
        {
            if (typeof this[module] == 'undefined') return;

            // init module
            this[module] = this[module]();

            var methods = this.getModuleMethods(this[module]);
            var len = methods.length;

            // bind methods
            for (var z = 0; z < len; z++)
            {
                this[module][methods[z]] = this[module][methods[z]].bind(this);
            }
        },

        alignment: function()
        {
            return {
                left: function()
                {
                    this.alignment.set('');
                },
                right: function()
                {
                    this.alignment.set('right');
                },
                center: function()
                {
                    this.alignment.set('center');
                },
                justify: function()
                {
                    this.alignment.set('justify');
                },
                set: function(type)
                {
                    // focus
                    if (!this.utils.browser('msie')) this.$editor.focus();

                    this.buffer.set();
                    this.selection.save();

                    // get blocks
                    this.alignment.blocks = this.selection.getBlocks();
                    this.alignment.type = type;

                    // set alignment
                    if (this.alignment.isLinebreaksOrNoBlocks())
                    {
                        this.alignment.setText();
                    }
                    else
                    {
                        this.alignment.setBlocks();
                    }

                    // sync
                    this.selection.restore();
                    this.code.sync();
                },
                setText: function()
                {
                    var wrapper = this.selection.wrap('div');
                    $(wrapper).attr('data-tagblock', 'redactor').css('text-align', this.alignment.type);
                },
                setBlocks: function()
                {
                    $.each(this.alignment.blocks, $.proxy(function(i, el)
                    {
                        var $el = this.utils.getAlignmentElement(el);
                        if (!$el) return;

                        if (this.alignment.isNeedReplaceElement($el))
                        {
                            this.alignment.replaceElement($el);
                        }
                        else
                        {
                            this.alignment.alignElement($el);
                        }

                    }, this));
                },
                isLinebreaksOrNoBlocks: function()
                {
                    return (this.opts.linebreaks && this.alignment.blocks[0] === false);
                },
                isNeedReplaceElement: function($el)
                {
                    return (this.alignment.type === '' && typeof($el.data('tagblock')) !== 'undefined');
                },
                replaceElement: function($el)
                {
                    $el.replaceWith($el.html());
                },
                alignElement: function($el)
                {
                    $el.css('text-align', this.alignment.type);
                    this.utils.removeEmptyAttr($el, 'style');
                }
            };
        },
        autosave: function()
        {
            return {
                html: false,
                enable: function()
                {
                    if (!this.opts.autosave) return;

                    this.autosave.name = (this.opts.autosaveName) ? this.opts.autosaveName : this.$textarea.attr('name');

                    if (this.opts.autosaveOnChange) return;
                    this.autosaveInterval = setInterval(this.autosave.load, this.opts.autosaveInterval * 1000);
                },
                onChange: function()
                {
                    if (!this.opts.autosaveOnChange) return;
                    this.autosave.load();
                },
                load: function()
                {
                    this.autosave.source = this.code.get();

                    if (this.autosave.html === this.autosave.source) return;
                    //if (this.utils.isEmpty(this.autosave.source)) return;

                    // data
                    var data = {};
                    data['name'] = this.autosave.name;
                    data[this.autosave.name] = this.autosave.source;
                    data = this.autosave.getHiddenFields(data);

                    // ajax
                    var jsxhr = $.ajax({
                        url: this.opts.autosave,
                        type: 'post',
                        data: data
                    });

                    jsxhr.done(this.autosave.success);
                },
                getHiddenFields: function(data)
                {
                    if (this.opts.autosaveFields === false || typeof this.opts.autosaveFields !== 'object')
                    {
                        return data;
                    }

                    $.each(this.opts.autosaveFields, $.proxy(function(k, v)
                    {
                        if (v !== null && v.toString().indexOf('#') === 0) v = $(v).val();
                        data[k] = v;

                    }, this));

                    return data;

                },
                success: function(data)
                {
                    var json;
                    try
                    {
                        json = $.parseJSON(data);
                    }
                    catch(e)
                    {
                        //data has already been parsed
                        json = data;
                    }

                    var callbackName = (typeof json.error == 'undefined') ? 'autosave' :  'autosaveError';

                    this.core.setCallback(callbackName, this.autosave.name, json);
                    this.autosave.html = this.autosave.source;
                },
                disable: function()
                {
                    clearInterval(this.autosaveInterval);
                }
            };
        },
        block: function()
        {
            return {
                formatting: function(name)
                {
                    this.block.clearStyle = false;
                    var type, value;

                    if (typeof this.formatting[name].data != 'undefined') type = 'data';
                    else if (typeof this.formatting[name].attr != 'undefined') type = 'attr';
                    else if (typeof this.formatting[name]['class'] != 'undefined') type = 'class';

                    if (typeof this.formatting[name].clear != 'undefined')
                    {
                        this.block.clearStyle = true;
                    }

                    if (type) value = this.formatting[name][type];

                    this.block.format(this.formatting[name].tag, type, value);

                },
                format: function(tag, type, value)
                {
                    if (tag == 'quote') tag = 'blockquote';

                    var formatTags = ['p', 'pre', 'blockquote', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6'];
                    if ($.inArray(tag, formatTags) == -1) return;

                    this.block.isRemoveInline = (tag == 'pre' || tag.search(/h[1-6]/i) != -1);

                    // focus
                    if (!this.utils.browser('msie')) this.$editor.focus();

                    this.block.blocks = this.selection.getBlocks();

                    this.block.blocksSize = this.block.blocks.length;
                    this.block.type = type;
                    this.block.value = value;

                    this.buffer.set();
                    this.selection.save();

                    this.block.set(tag);

                    this.selection.restore();
                    this.code.sync();

                },
                set: function(tag)
                {
                    this.selection.get();
                    this.block.containerTag = this.range.commonAncestorContainer.tagName;

                    if (this.range.collapsed)
                    {
                        this.block.setCollapsed(tag);
                    }
                    else
                    {
                        this.block.setMultiple(tag);
                    }
                },
                setCollapsed: function(tag)
                {
                    var block = this.block.blocks[0];
                    if (block === false) return;

                    if (block.tagName == 'LI')
                    {
                        if (tag != 'blockquote') return;

                        this.block.formatListToBlockquote();
                        return;
                    }

                    var isContainerTable = (this.block.containerTag  == 'TD' || this.block.containerTag  == 'TH');
                    if (isContainerTable && !this.opts.linebreaks)
                    {

                        document.execCommand('formatblock', false, '<' + tag + '>');

                        block = this.selection.getBlock();
                        this.block.toggle($(block));

                    }
                    else if (block.tagName.toLowerCase() != tag)
                    {
                        if (this.opts.linebreaks && tag == 'p')
                        {
                            $(block).prepend('<br>').append('<br>');
                            this.utils.replaceWithContents(block);
                        }
                        else
                        {
                            var $formatted = this.utils.replaceToTag(block, tag);

                            this.block.toggle($formatted);

                            if (tag != 'p' && tag != 'blockquote') $formatted.find('img').remove();
                            if (this.block.isRemoveInline) this.utils.removeInlineTags($formatted);
                            if (tag == 'p' || this.block.headTag) $formatted.find('p').contents().unwrap();

                            this.block.formatTableWrapping($formatted);
                        }
                    }
                    else if (tag == 'blockquote' && block.tagName.toLowerCase() == tag)
                    {
                        // blockquote off
                        if (this.opts.linebreaks)
                        {
                            $(block).prepend('<br>').append('<br>');
                            this.utils.replaceWithContents(block);
                        }
                        else
                        {
                            var $el = this.utils.replaceToTag(block, 'p');
                            this.block.toggle($el);
                        }
                    }
                    else if (block.tagName.toLowerCase() == tag)
                    {
                        this.block.toggle($(block));
                    }

                    if (typeof this.block.type == 'undefined' && typeof this.block.value == 'undefined')
                    {
                        $(block).removeAttr('class').removeAttr('style');
                    }

                },
                setMultiple: function(tag)
                {
                    var block = this.block.blocks[0];
                    var isContainerTable = (this.block.containerTag  == 'TD' || this.block.containerTag  == 'TH');

                    if (block !== false && this.block.blocksSize === 1)
                    {
                        if (block.tagName.toLowerCase() == tag &&  tag == 'blockquote')
                        {
                            // blockquote off
                            if (this.opts.linebreaks)
                            {
                                $(block).prepend('<br>').append('<br>');
                                this.utils.replaceWithContents(block);
                            }
                            else
                            {
                                var $el = this.utils.replaceToTag(block, 'p');
                                this.block.toggle($el);
                            }
                        }
                        else if (block.tagName == 'LI')
                        {
                            if (tag != 'blockquote') return;

                            this.block.formatListToBlockquote();
                        }
                        else if (this.block.containerTag == 'BLOCKQUOTE')
                        {
                            this.block.formatBlockquote(tag);
                        }
                        else if (this.opts.linebreaks && ((isContainerTable) || (this.range.commonAncestorContainer != block)))
                        {
                            this.block.formatWrap(tag);
                        }
                        else
                        {
                            if (this.opts.linebreaks && tag == 'p')
                            {
                                $(block).prepend('<br>').append('<br>');
                                this.utils.replaceWithContents(block);
                            }
                            else if (block.tagName === 'TD')
                            {
                                this.block.formatWrap(tag);
                            }
                            else
                            {
                                var $formatted = this.utils.replaceToTag(block, tag);

                                this.block.toggle($formatted);

                                if (this.block.isRemoveInline) this.utils.removeInlineTags($formatted);
                                if (tag == 'p' || this.block.headTag) $formatted.find('p').contents().unwrap();
                            }
                        }
                    }
                    else
                    {

                        if (this.opts.linebreaks || tag != 'p')
                        {
                            if (tag == 'blockquote')
                            {
                                var count = 0;
                                for (var i = 0; i < this.block.blocksSize; i++)
                                {
                                    if (this.block.blocks[i].tagName == 'BLOCKQUOTE') count++;
                                }

                                // only blockquote selected
                                if (count == this.block.blocksSize)
                                {
                                    $.each(this.block.blocks, $.proxy(function(i,s)
                                    {
                                        var $formatted = false;
                                        if (this.opts.linebreaks)
                                        {
                                            $(s).prepend('<br>').append('<br>');
                                            $formatted = this.utils.replaceWithContents(s);
                                        }
                                        else
                                        {
                                            $formatted = this.utils.replaceToTag(s, 'p');
                                        }

                                        if ($formatted && typeof this.block.type == 'undefined' && typeof this.block.value == 'undefined')
                                        {
                                            $formatted.removeAttr('class').removeAttr('style');
                                        }

                                    }, this));

                                    return;
                                }

                            }


                            this.block.formatWrap(tag);
                        }
                        else
                        {
                            var classSize = 0;
                            var toggleType = false;
                            if (this.block.type == 'class')
                            {
                                toggleType = 'toggle';
                                classSize = $(this.block.blocks).filter('.' + this.block.value).length;

                                if (this.block.blocksSize == classSize) toggleType = 'toggle';
                                else if (this.block.blocksSize > classSize) toggleType = 'set';
                                else if (classSize === 0) toggleType = 'set';

                            }

                            var exceptTags = ['ul', 'ol', 'li', 'td', 'th', 'dl', 'dt', 'dd'];
                            $.each(this.block.blocks, $.proxy(function(i,s)
                            {
                                if ($.inArray(s.tagName.toLowerCase(), exceptTags) != -1) return;

                                var $formatted = this.utils.replaceToTag(s, tag);

                                if (toggleType)
                                {
                                    if (toggleType == 'toggle') this.block.toggle($formatted);
                                    else if (toggleType == 'remove') this.block.remove($formatted);
                                    else if (toggleType == 'set') this.block.setForce($formatted);
                                }
                                else this.block.toggle($formatted);

                                if (tag != 'p' && tag != 'blockquote') $formatted.find('img').remove();
                                if (this.block.isRemoveInline) this.utils.removeInlineTags($formatted);
                                if (tag == 'p' || this.block.headTag) $formatted.find('p').contents().unwrap();

                                if (typeof this.block.type == 'undefined' && typeof this.block.value == 'undefined')
                                {
                                    $formatted.removeAttr('class').removeAttr('style');
                                }


                            }, this));
                        }
                    }
                },
                setForce: function($el)
                {
                    // remove style and class if the specified setting
                    if (this.block.clearStyle)
                    {
                        $el.removeAttr('class').removeAttr('style');
                    }

                    if (this.block.type == 'class')
                    {
                        $el.addClass(this.block.value);
                        return;
                    }
                    else if (this.block.type == 'attr' || this.block.type == 'data')
                    {
                        $el.attr(this.block.value.name, this.block.value.value);
                        return;
                    }
                },
                toggle: function($el)
                {
                    // remove style and class if the specified setting
                    if (this.block.clearStyle)
                    {
                        $el.removeAttr('class').removeAttr('style');
                    }

                    if (this.block.type == 'class')
                    {
                        $el.toggleClass(this.block.value);
                        return;
                    }
                    else if (this.block.type == 'attr' || this.block.type == 'data')
                    {
                        if ($el.attr(this.block.value.name) == this.block.value.value)
                        {
                            $el.removeAttr(this.block.value.name);
                        }
                        else
                        {
                            $el.attr(this.block.value.name, this.block.value.value);
                        }

                        return;
                    }
                    else
                    {
                        $el.removeAttr('style class');
                        return;
                    }
                },
                remove: function($el)
                {
                    $el.removeClass(this.block.value);
                },
                formatListToBlockquote: function()
                {
                    var block = $(this.block.blocks[0]).closest('ul, ol', this.$editor[0]);

                    $(block).find('ul, ol').contents().unwrap();
                    $(block).find('li').append($('<br>')).contents().unwrap();

                    var $el = this.utils.replaceToTag(block, 'blockquote');
                    this.block.toggle($el);
                },
                formatBlockquote: function(tag)
                {
                    document.execCommand('outdent');
                    document.execCommand('formatblock', false, tag);

                    this.clean.clearUnverified();
                    this.$editor.find('p:empty').remove();

                    var formatted = this.selection.getBlock();

                    if (tag != 'p')
                    {
                        $(formatted).find('img').remove();
                    }

                    if (!this.opts.linebreaks)
                    {
                        this.block.toggle($(formatted));
                    }

                    this.$editor.find('ul, ol, tr, blockquote, p').each($.proxy(this.utils.removeEmpty, this));

                    if (this.opts.linebreaks && tag == 'p')
                    {
                        this.utils.replaceWithContents(formatted);
                    }

                },
                formatWrap: function(tag)
                {
                    if (this.block.containerTag == 'UL' || this.block.containerTag == 'OL')
                    {
                        if (tag == 'blockquote')
                        {
                            this.block.formatListToBlockquote();
                        }
                        else
                        {
                            return;
                        }
                    }

                    var formatted = this.selection.wrap(tag);
                    if (formatted === false) return;

                    var $formatted = $(formatted);

                    this.block.formatTableWrapping($formatted);

                    var $elements = $formatted.find(this.opts.blockLevelElements.join(',') + ', td, table, thead, tbody, tfoot, th, tr');

                    if ((this.opts.linebreaks && tag == 'p') || tag == 'pre' || tag == 'blockquote')
                    {
                        $elements.append('<br />');
                    }

                    $elements.contents().unwrap();

                    if (tag != 'p' && tag != 'blockquote') $formatted.find('img').remove();

                    $.each(this.block.blocks, $.proxy(this.utils.removeEmpty, this));

                    $formatted.append(this.selection.getMarker(2));

                    if (!this.opts.linebreaks)
                    {
                        this.block.toggle($formatted);
                    }

                    this.$editor.find('ul, ol, tr, blockquote, p').each($.proxy(this.utils.removeEmpty, this));
                    $formatted.find('blockquote:empty').remove();

                    if (this.block.isRemoveInline)
                    {
                        this.utils.removeInlineTags($formatted);
                    }

                    if (this.opts.linebreaks && tag == 'p')
                    {
                        this.utils.replaceWithContents($formatted);
                    }

                },
                formatTableWrapping: function($formatted)
                {
                    if ($formatted.closest('table', this.$editor[0]).length === 0) return;

                    if ($formatted.closest('tr', this.$editor[0]).length === 0) $formatted.wrap('<tr>');
                    if ($formatted.closest('td', this.$editor[0]).length === 0 && $formatted.closest('th').length === 0)
                    {
                        $formatted.wrap('<td>');
                    }
                },
                removeData: function(name, value)
                {
                    var blocks = this.selection.getBlocks();
                    $(blocks).removeAttr('data-' + name);

                    this.code.sync();
                },
                setData: function(name, value)
                {
                    var blocks = this.selection.getBlocks();
                    $(blocks).attr('data-' + name, value);

                    this.code.sync();
                },
                toggleData: function(name, value)
                {
                    var blocks = this.selection.getBlocks();
                    $.each(blocks, function()
                    {
                        if ($(this).attr('data-' + name))
                        {
                            $(this).removeAttr('data-' + name);
                        }
                        else
                        {
                            $(this).attr('data-' + name, value);
                        }
                    });
                },
                removeAttr: function(attr, value)
                {
                    var blocks = this.selection.getBlocks();
                    $(blocks).removeAttr(attr);

                    this.code.sync();
                },
                setAttr: function(attr, value)
                {
                    var blocks = this.selection.getBlocks();
                    $(blocks).attr(attr, value);

                    this.code.sync();
                },
                toggleAttr: function(attr, value)
                {
                    var blocks = this.selection.getBlocks();
                    $.each(blocks, function()
                    {
                        if ($(this).attr(name))
                        {
                            $(this).removeAttr(name);
                        }
                        else
                        {
                            $(this).attr(name, value);
                        }
                    });
                },
                removeClass: function(className)
                {
                    var blocks = this.selection.getBlocks();
                    $(blocks).removeClass(className);

                    this.utils.removeEmptyAttr(blocks, 'class');

                    this.code.sync();
                },
                setClass: function(className)
                {
                    var blocks = this.selection.getBlocks();
                    $(blocks).addClass(className);

                    this.code.sync();
                },
                toggleClass: function(className)
                {
                    var blocks = this.selection.getBlocks();
                    $(blocks).toggleClass(className);

                    this.code.sync();
                }
            };
        },
        buffer: function()
        {
            return {
                set: function(type)
                {
                    if (typeof type == 'undefined' || type == 'undo')
                    {
                        this.buffer.setUndo();
                    }
                    else
                    {
                        this.buffer.setRedo();
                    }
                },
                setUndo: function()
                {
                    this.selection.save();
                    this.opts.buffer.push(this.$editor.html());
                    this.selection.restore();
                },
                setRedo: function()
                {
                    this.selection.save();
                    this.opts.rebuffer.push(this.$editor.html());
                    this.selection.restore();
                },
                getUndo: function()
                {
                    this.$editor.html(this.opts.buffer.pop());
                },
                getRedo: function()
                {
                    this.$editor.html(this.opts.rebuffer.pop());
                },
                add: function()
                {
                    this.opts.buffer.push(this.$editor.html());
                },
                undo: function()
                {
                    if (this.opts.buffer.length === 0) return;

                    this.buffer.set('redo');
                    this.buffer.getUndo();

                    this.selection.restore();

                    setTimeout($.proxy(this.observe.load, this), 50);
                },
                redo: function()
                {
                    if (this.opts.rebuffer.length === 0) return;

                    this.buffer.set('undo');
                    this.buffer.getRedo();

                    this.selection.restore();

                    setTimeout($.proxy(this.observe.load, this), 50);
                }
            };
        },
        build: function()
        {
            return {
                run: function()
                {
                    this.build.createContainerBox();
                    this.build.loadContent();
                    this.build.loadEditor();
                    this.build.enableEditor();
                    this.build.setCodeAndCall();
                },
                isTextarea: function()
                {
                    return (this.$element[0].tagName === 'TEXTAREA');
                },
                createContainerBox: function()
                {
                    this.$box = $('<div class="redactor-box" />');
                },
                createTextarea: function()
                {
                    this.$textarea = $('<textarea />').attr('name', this.build.getTextareaName());
                },
                getTextareaName: function()
                {
                    return ((typeof(name) == 'undefined')) ? 'content-' + this.uuid : this.$element.attr('id');
                },
                loadContent: function()
                {
                    var func = (this.build.isTextarea()) ? 'val' : 'html';
                    this.content = $.trim(this.$element[func]());
                },
                enableEditor: function()
                {
                    this.$editor.attr({ 'contenteditable': true, 'dir': this.opts.direction });
                },
                loadEditor: function()
                {
                    var func = (this.build.isTextarea()) ? 'fromTextarea' : 'fromElement';
                    this.build[func]();
                },
                fromTextarea: function()
                {
                    this.$editor = $('<div />');
                    this.$textarea = this.$element;
                    this.$box.insertAfter(this.$element).append(this.$editor).append(this.$element);
                    this.$editor.addClass('redactor-editor');

                    this.$element.hide();
                },
                fromElement: function()
                {
                    this.$editor = this.$element;
                    this.build.createTextarea();
                    this.$box.insertAfter(this.$editor).append(this.$editor).append(this.$textarea);
                    this.$editor.addClass('redactor-editor');

                    this.$textarea.hide();
                },
                setCodeAndCall: function()
                {
                    // set code
                    this.code.set(this.content);

                    this.build.setOptions();
                    this.build.callEditor();

                    // code mode
                    if (this.opts.visual) return;
                    setTimeout($.proxy(this.code.showCode, this), 200);
                },
                callEditor: function()
                {
                    this.build.disableMozillaEditing();
                    this.build.setEvents();
                    this.build.setHelpers();

                    // load toolbar
                    if (this.opts.toolbar)
                    {
                        this.opts.toolbar = this.toolbar.init();
                        this.toolbar.build();
                    }

                    // modal templates init
                    this.modal.loadTemplates();

                    // plugins
                    this.build.plugins();

                    // observers
                    setTimeout($.proxy(this.observe.load, this), 4);

                    // init callback
                    this.core.setCallback('init');
                },
                setOptions: function()
                {
                    // textarea direction
                    $(this.$textarea).attr('dir', this.opts.direction);

                    if (this.opts.linebreaks) this.$editor.addClass('redactor-linebreaks');

                    if (this.opts.tabindex) this.$editor.attr('tabindex', this.opts.tabindex);

                    if (this.opts.minHeight) this.$editor.css('minHeight', this.opts.minHeight);
                    if (this.opts.maxHeight) this.$editor.css('maxHeight', this.opts.maxHeight);

                },
                setEventDropUpload: function(e)
                {
                    e.preventDefault();

                    if (!this.opts.dragImageUpload || !this.opts.dragFileUpload) return;

                    var files = e.dataTransfer.files;
                    this.upload.directUpload(files[0], e);
                },
                setEventDrop: function(e)
                {
                    this.code.sync();
                    setTimeout(this.clean.clearUnverified, 1);
                    this.core.setCallback('drop', e);
                },
                setEvents: function()
                {
                    // drop
                    this.$editor.on('drop.redactor', $.proxy(function(e)
                    {
                        e = e.originalEvent || e;

                        if (window.FormData === undefined || !e.dataTransfer) return true;

                        if (e.dataTransfer.files.length === 0)
                        {
                            return this.build.setEventDrop(e);
                        }
                        else
                        {
                            this.build.setEventDropUpload(e);
                        }

                        setTimeout(this.clean.clearUnverified, 1);
                        this.core.setCallback('drop', e);

                    }, this));


                    // click
                    this.$editor.on('click.redactor', $.proxy(function(e)
                    {
                        var event = this.core.getEvent();
                        var type = (event == 'click' || event == 'arrow') ? false : 'click';

                        this.core.addEvent(type);
                        this.utils.disableSelectAll();
                        this.core.setCallback('click', e);

                    }, this));

                    // paste
                    this.$editor.on('paste.redactor', $.proxy(this.paste.init, this));

                    // cut
                    this.$editor.on('cut.redactor', $.proxy(this.code.sync, this));

                    // keydown
                    this.$editor.on('keydown.redactor', $.proxy(this.keydown.init, this));

                    // keyup
                    this.$editor.on('keyup.redactor', $.proxy(this.keyup.init, this));

                    // textarea keydown
                    if ($.isFunction(this.opts.codeKeydownCallback))
                    {
                        this.$textarea.on('keydown.redactor-textarea', $.proxy(this.opts.codeKeydownCallback, this));
                    }

                    // textarea keyup
                    if ($.isFunction(this.opts.codeKeyupCallback))
                    {
                        this.$textarea.on('keyup.redactor-textarea', $.proxy(this.opts.codeKeyupCallback, this));
                    }

                    // focus
                    if ($.isFunction(this.opts.focusCallback))
                    {
                        this.$editor.on('focus.redactor', $.proxy(this.opts.focusCallback, this));
                    }

                    var clickedElement;
                    $(document).on('mousedown', function(e) { clickedElement = e.target; });

                    // blur
                    this.$editor.on('blur.redactor', $.proxy(function(e)
                    {
                        if (this.rtePaste) return;
                        if (!this.build.isBlured(clickedElement)) return;

                        this.utils.disableSelectAll();
                        if ($.isFunction(this.opts.blurCallback)) this.core.setCallback('blur', e);

                    }, this));
                },
                isBlured: function(clickedElement)
                {
                    var $el = $(clickedElement);

                    return (!$el.hasClass('redactor-toolbar, redactor-dropdown') && !$el.is('#redactor-modal') && $el.parents('.redactor-toolbar, .redactor-dropdown, #redactor-modal').length === 0);
                },
                setHelpers: function()
                {
                    // linkify
                    if (this.linkify.isEnabled())
                    {
                        this.linkify.format();
                    }

                    // placeholder
                    this.placeholder.enable();

                    // focus
                    if (this.opts.focus) setTimeout(this.focus.setStart, 100);
                    if (this.opts.focusEnd) setTimeout(this.focus.setEnd, 100);

                },
                plugins: function()
                {
                    if (!this.opts.plugins) return;
                    if (!RedactorPlugins) return;

                    $.each(this.opts.plugins, $.proxy(function(i, s)
                    {
                        if (typeof RedactorPlugins[s] === 'undefined') return;

                        if ($.inArray(s, $.Redactor.modules) !== -1)
                        {
                            $.error('Plugin name "' + s + '" matches the name of the Redactor\'s module.');
                            return;
                        }

                        if (!$.isFunction(RedactorPlugins[s])) return;

                        this[s] = RedactorPlugins[s]();

                        // get methods
                        var methods = this.getModuleMethods(this[s]);
                        var len = methods.length;

                        // bind methods
                        for (var z = 0; z < len; z++)
                        {
                            this[s][methods[z]] = this[s][methods[z]].bind(this);
                        }

                        if ($.isFunction(this[s].init)) this[s].init();


                    }, this));

                },
                disableMozillaEditing: function()
                {
                    if (!this.utils.browser('mozilla')) return;

                    // FF fix
                    try {
                        document.execCommand('enableObjectResizing', false, false);
                        document.execCommand('enableInlineTableEditing', false, false);
                    } catch (e) {}
                }
            };
        },
        button: function()
        {
            return {
                build: function(btnName, btnObject)
                {
                    var $button = $('<a href="#" class="re-icon re-' + btnName + '" rel="' + btnName + '" />').attr('tabindex', '-1');

                    // click
                    if (btnObject.func || btnObject.command || btnObject.dropdown)
                    {
                        this.button.setEvent($button, btnName, btnObject);
                    }

                    // dropdown
                    if (btnObject.dropdown)
                    {
                        var $dropdown = $('<div class="redactor-dropdown redactor-dropdown-' + this.uuid + ' redactor-dropdown-box-' + btnName + '" style="display: none;">');
                        $button.data('dropdown', $dropdown);
                        this.dropdown.build(btnName, $dropdown, btnObject.dropdown);
                    }

                    // tooltip
                    if (this.utils.isDesktop())
                    {
                        this.button.createTooltip($button, btnName, btnObject.title);
                    }

                    return $button;
                },
                setEvent: function($button, btnName, btnObject)
                {
                    $button.on('touchstart click', $.proxy(function(e)
                    {
                        if ($button.hasClass('redactor-button-disabled')) return false;

                        var type = 'func';
                        var callback = btnObject.func;

                        if (btnObject.command)
                        {
                            type = 'command';
                            callback = btnObject.command;
                        }
                        else if (btnObject.dropdown)
                        {
                            type = 'dropdown';
                            callback = false;
                        }

                        this.button.onClick(e, btnName, type, callback);

                    }, this));
                },
                createTooltip: function($button, name, title)
                {
                    var $tooltip = $('<span>').addClass('redactor-toolbar-tooltip redactor-toolbar-tooltip-' + name).hide().html(title);
                    $tooltip.appendTo('body');

                    $button.on('mouseover', function()
                    {
                        if ($(this).hasClass('redactor-button-disabled')) return;

                        var pos = $button.offset();

                        $tooltip.show();
                        $tooltip.css({
                            top: (pos.top + $button.innerHeight()) + 'px',
                            left: (pos.left + $button.innerWidth()/2 - $tooltip.innerWidth()/2) + 'px'
                        });
                    });

                    $button.on('mouseout', function()
                    {
                        $tooltip.hide();
                    });

                },
                onClick: function(e, btnName, type, callback)
                {
                    this.button.caretOffset = this.caret.getOffset();

                    e.preventDefault();

                    if (this.utils.browser('msie')) e.returnValue = false;

                    if (type == 'command') this.inline.format(callback);
                    else if (type == 'dropdown') this.dropdown.show(e, btnName);
                    else this.button.onClickCallback(e, callback, btnName);
                },
                onClickCallback: function(e, callback, btnName)
                {
                    var func;

                    if ($.isFunction(callback)) callback.call(this, btnName);
                    else if (callback.search(/\./) != '-1')
                    {
                        func = callback.split('.');
                        if (typeof this[func[0]] == 'undefined') return;

                        this[func[0]][func[1]](btnName);
                    }
                    else this[callback](btnName);

                    this.observe.buttons(e, btnName);
                },
                get: function(key)
                {
                    return this.$toolbar.find('a.re-' + key);
                },
                setActive: function(key)
                {
                    this.button.get(key).addClass('redactor-act');
                },
                setInactive: function(key)
                {
                    this.button.get(key).removeClass('redactor-act');
                },
                setInactiveAll: function(key)
                {
                    if (typeof key === 'undefined')
                    {
                        this.$toolbar.find('a.re-icon').removeClass('redactor-act');
                    }
                    else
                    {
                        this.$toolbar.find('a.re-icon').not('.re-' + key).removeClass('redactor-act');
                    }
                },
                setActiveInVisual: function()
                {
                    this.$toolbar.find('a.re-icon').not('a.re-html').removeClass('redactor-button-disabled');
                },
                setInactiveInCode: function()
                {
                    this.$toolbar.find('a.re-icon').not('a.re-html').addClass('redactor-button-disabled');
                },
                changeIcon: function(key, classname)
                {
                    this.button.get(key).addClass('re-' + classname);
                },
                removeIcon: function(key, classname)
                {
                    this.button.get(key).removeClass('re-' + classname);
                },
                setAwesome: function(key, name)
                {
                    var $button = this.button.get(key);
                    $button.removeClass('redactor-btn-image').addClass('fa-redactor-btn');
                    $button.html('<i class="fa ' + name + '"></i>');
                },
                addCallback: function($btn, callback)
                {
                    var type = (callback == 'dropdown') ? 'dropdown' : 'func';
                    var key = $btn.attr('rel');
                    $btn.on('touchstart click', $.proxy(function(e)
                    {
                        if ($btn.hasClass('redactor-button-disabled')) return false;
                        this.button.onClick(e, key, type, callback);

                    }, this));
                },
                addDropdown: function($btn, dropdown)
                {
                    var key = $btn.attr('rel');
                    this.button.addCallback($btn, 'dropdown');

                    var $dropdown = $('<div class="redactor-dropdown redactor-dropdown-' + this.uuid + ' redactor-dropdown-box-' + key + '" style="display: none;">');
                    $btn.data('dropdown', $dropdown);

                    // build dropdown
                    if (dropdown) this.dropdown.build(key, $dropdown, dropdown);

                    return $dropdown;
                },
                add: function(key, title)
                {
                    if (!this.opts.toolbar) return;

                    var btn = this.button.build(key, { title: title });
                    btn.addClass('redactor-btn-image');

                    this.$toolbar.append($('<li>').append(btn));

                    return btn;
                },
                addFirst: function(key, title)
                {
                    if (!this.opts.toolbar) return;

                    var btn = this.button.build(key, { title: title });
                    btn.addClass('redactor-btn-image');
                    this.$toolbar.prepend($('<li>').append(btn));

                    return btn;
                },
                addAfter: function(afterkey, key, title)
                {
                    if (!this.opts.toolbar) return;

                    var btn = this.button.build(key, { title: title });
                    btn.addClass('redactor-btn-image');
                    var $btn = this.button.get(afterkey);

                    if ($btn.length !== 0) $btn.parent().after($('<li>').append(btn));
                    else this.$toolbar.append($('<li>').append(btn));

                    return btn;
                },
                addBefore: function(beforekey, key, title)
                {
                    if (!this.opts.toolbar) return;

                    var btn = this.button.build(key, { title: title });
                    btn.addClass('redactor-btn-image');
                    var $btn = this.button.get(beforekey);

                    if ($btn.length !== 0) $btn.parent().before($('<li>').append(btn));
                    else this.$toolbar.append($('<li>').append(btn));

                    return btn;
                },
                remove: function(key)
                {
                    this.button.get(key).remove();
                }
            };
        },
        caret: function()
        {
            return {
                setStart: function(node)
                {
                    // inline tag
                    if (!this.utils.isBlock(node))
                    {
                        var space = this.utils.createSpaceElement();

                        $(node).prepend(space);
                        this.caret.setEnd(space);
                    }
                    else
                    {
                        this.caret.set(node, 0, node, 0);
                    }
                },
                setEnd: function(node)
                {
                    this.caret.set(node, 1, node, 1);
                },
                set: function(orgn, orgo, focn, foco)
                {
                    // focus
                    // disabled in 10.0.7
                    // if (!this.utils.browser('msie')) this.$editor.focus();

                    orgn = orgn[0] || orgn;
                    focn = focn[0] || focn;

                    if (this.utils.isBlockTag(orgn.tagName) && orgn.innerHTML === '')
                    {
                        orgn.innerHTML = this.opts.invisibleSpace;
                    }

                    if (orgn.tagName == 'BR' && this.opts.linebreaks === false)
                    {
                        var parent = $(this.opts.emptyHtml)[0];
                        $(orgn).replaceWith(parent);
                        orgn = parent;
                        focn = orgn;
                    }

                    this.selection.get();

                    try
                    {
                        this.range.setStart(orgn, orgo);
                        this.range.setEnd(focn, foco);
                    }
                    catch (e) {}

                    this.selection.addRange();
                },
                setAfter: function(node)
                {
                    try
                    {
                        var tag = $(node)[0].tagName;

                        // inline tag
                        if (tag != 'BR' && !this.utils.isBlock(node))
                        {
                            var space = this.utils.createSpaceElement();

                            $(node).after(space);
                            this.caret.setEnd(space);
                        }
                        else
                        {
                            if (tag != 'BR' && this.utils.browser('msie'))
                            {
                                this.caret.setStart($(node).next());
                            }
                            else
                            {
                                this.caret.setAfterOrBefore(node, 'after');
                            }
                        }
                    }
                    catch (e)
                    {
                        var space = this.utils.createSpaceElement();
                        $(node).after(space);
                        this.caret.setEnd(space);
                    }
                },
                setBefore: function(node)
                {
                    // block tag
                    if (this.utils.isBlock(node))
                    {
                        this.caret.setEnd($(node).prev());
                    }
                    else
                    {
                        this.caret.setAfterOrBefore(node, 'before');
                    }
                },
                setAfterOrBefore: function(node, type)
                {
                    // focus
                    if (!this.utils.browser('msie')) this.$editor.focus();

                    node = node[0] || node;

                    this.selection.get();

                    if (type == 'after')
                    {
                        try {

                            this.range.setStartAfter(node);
                            this.range.setEndAfter(node);
                        }
                        catch (e) {}
                    }
                    else
                    {
                        try {
                            this.range.setStartBefore(node);
                            this.range.setEndBefore(node);
                        }
                        catch (e) {}
                    }


                    this.range.collapse(false);
                    this.selection.addRange();
                },
                getOffsetOfElement: function(node)
                {
                    node = node[0] || node;

                    this.selection.get();

                    var cloned = this.range.cloneRange();
                    cloned.selectNodeContents(node);
                    cloned.setEnd(this.range.endContainer, this.range.endOffset);

                    return $.trim(cloned.toString()).length;
                },
                getOffset: function()
                {
                    var offset = 0;
                    var sel = window.getSelection();

                    if (sel.rangeCount > 0)
                    {
                        var range = window.getSelection().getRangeAt(0);
                        var caretRange = range.cloneRange();
                        caretRange.selectNodeContents(this.$editor[0]);
                        caretRange.setEnd(range.endContainer, range.endOffset);
                        offset = caretRange.toString().length;
                    }

                    return offset;
                },
                setOffset: function(start, end)
                {
                    if (typeof end == 'undefined') end = start;
                    if (!this.focus.isFocused()) this.focus.setStart();

                    var sel = this.selection.get();
                    var node, offset = 0;
                    var walker = document.createTreeWalker(this.$editor[0], NodeFilter.SHOW_TEXT, null, null);

                    while (node = walker.nextNode())
                    {
                        offset += node.nodeValue.length;
                        if (offset > start)
                        {
                            this.range.setStart(node, node.nodeValue.length + start - offset);
                            start = Infinity;
                        }

                        if (offset >= end)
                        {
                            this.range.setEnd(node, node.nodeValue.length + end - offset);
                            break;
                        }
                    }

                    this.range.collapse(false);
                    this.selection.addRange();
                },
                // deprecated
                setToPoint: function(start, end)
                {
                    this.caret.setOffset(start, end);
                },
                getCoords: function()
                {
                    return this.caret.getOffset();
                }
            };
        },
        clean: function()
        {
            return {
                onSet: function(html)
                {
                    html = this.clean.savePreCode(html);

                    // convert script tag
                    html = html.replace(/<script(.*?[^>]?)>([\w\W]*?)<\/script>/gi, '<pre class="redactor-script-tag" style="display: none;" $1>$2</pre>');

                    // replace dollar sign to entity
                    html = html.replace(/\$/g, '&#36;');

                    // replace special characters in links
                    html = html.replace(/<a href="(.*?[^>]?)®(.*?[^>]?)">/gi, '<a href="$1&reg$2">');

                    if (this.opts.replaceDivs) html = this.clean.replaceDivs(html);
                    if (this.opts.linebreaks)  html = this.clean.replaceParagraphsToBr(html);

                    // save form tag
                    html = this.clean.saveFormTags(html);

                    // convert font tag to span
                    var $div = $('<div>');
                    $div.html(html);
                    var fonts = $div.find('font[style]');
                    if (fonts.length !== 0)
                    {
                        fonts.replaceWith(function()
                        {
                            var $el = $(this);
                            var $span = $('<span>').attr('style', $el.attr('style'));
                            return $span.append($el.contents());
                        });

                        html = $div.html();
                    }
                    $div.remove();

                    // remove font tag
                    html = html.replace(/<font(.*?[^<])>/gi, '');
                    html = html.replace(/<\/font>/gi, '');

                    // tidy html
                    html = this.tidy.load(html);

                    // paragraphize
                    if (this.opts.paragraphize) html = this.paragraphize.load(html);

                    // verified
                    html = this.clean.setVerified(html);

                    // convert inline tags
                    html = this.clean.convertInline(html);

                    return html;
                },
                onSync: function(html)
                {
                    // remove spaces
                    html = html.replace(/[\u200B-\u200D\uFEFF]/g, '');
                    html = html.replace(/&#x200b;/gi, '');

                    if (this.opts.cleanSpaces)
                    {
                        html = html.replace(/&nbsp;/gi, ' ');
                    }

                    if (html.search(/^<p>(||\s||<br\s?\/?>||&nbsp;)<\/p>$/i) != -1)
                    {
                        return '';
                    }

                    // reconvert script tag
                    html = html.replace(/<pre class="redactor-script-tag" style="display: none;"(.*?[^>]?)>([\w\W]*?)<\/pre>/gi, '<script$1>$2</script>');

                    // restore form tag
                    html = this.clean.restoreFormTags(html);

                    var chars = {
                        '\u2122': '&trade;',
                        '\u00a9': '&copy;',
                        '\u2026': '&hellip;',
                        '\u2014': '&mdash;',
                        '\u2010': '&dash;'
                        // START BLC_MODIFICATION
                        ,'\u00ae': '&reg;'
                         // END BLC MODIFICATION
                    };
                    // replace special characters
                    $.each(chars, function(i,s)
                    {
                        html = html.replace(new RegExp(i, 'g'), s);
                    });

                    // remove br in the of li
                    html = html.replace(new RegExp('<br\\s?/?></li>', 'gi'), '</li>');
                    html = html.replace(new RegExp('</li><br\\s?/?>', 'gi'), '</li>');
                    // remove verified
                    html = html.replace(/<div(.*?[^>]) data-tagblock="redactor"(.*?[^>])>/gi, '<div$1$2>');
                    html = html.replace(/<(.*?) data-verified="redactor"(.*?[^>])>/gi, '<$1$2>');
                    html = html.replace(/<span(.*?[^>])\srel="(.*?[^>])"(.*?[^>])>/gi, '<span$1$3>');
                    html = html.replace(/<img(.*?[^>])\srel="(.*?[^>])"(.*?[^>])>/gi, '<img$1$3>');
                    html = html.replace(/<img(.*?[^>])\sstyle="" (.*?[^>])>'/gi, '<img$1 $2>');
                    html = html.replace(/<img(.*?[^>])\sstyle (.*?[^>])>'/gi, '<img$1 $2>');
                    html = html.replace(/<span class="redactor-invisible-space">(.*?)<\/span>/gi, '$1');
                    html = html.replace(/ data-save-url="(.*?[^>])"/gi, '');

                    // remove image resize
                    html = html.replace(/<span(.*?)id="redactor-image-box"(.*?[^>])>([\w\W]*?)<img(.*?)><\/span>/gi, '$3<img$4>');
                    html = html.replace(/<span(.*?)id="redactor-image-resizer"(.*?[^>])>(.*?)<\/span>/gi, '');
                    html = html.replace(/<span(.*?)id="redactor-image-editter"(.*?[^>])>(.*?)<\/span>/gi, '');

                    // remove font tag
                    html = html.replace(/<font(.*?[^<])>/gi, '');
                    html = html.replace(/<\/font>/gi, '');

                    // tidy html
                    html = this.tidy.load(html);

                    // link nofollow
                    if (this.opts.linkNofollow)
                    {
                        html = html.replace(/<a(.*?)rel="nofollow"(.*?[^>])>/gi, '<a$1$2>');
                        html = html.replace(/<a(.*?[^>])>/gi, '<a$1 rel="nofollow">');
                    }

                    // reconvert inline
                    html = html.replace(/\sdata-redactor-(tag|class|style)="(.*?[^>])"/gi, '');
                    html = html.replace(new RegExp('<(.*?) data-verified="redactor"(.*?[^>])>', 'gi'), '<$1$2>');
                    html = html.replace(new RegExp('<(.*?) data-verified="redactor">', 'gi'), '<$1>');

                    return html;
                },
                onPaste: function(html, setMode)
                {
                    html = $.trim(html);

                    html = html.replace(/\$/g, '&#36;');

                    // convert dirty spaces
                    html = html.replace(/<span class="s1">/gi, '<span>');
                    html = html.replace(/<span class="Apple-converted-space">&nbsp;<\/span>/gi, ' ');
                    html = html.replace(/<span class="Apple-tab-span"[^>]*>\t<\/span>/gi, '\t');
                    html = html.replace(/<span[^>]*>(\s|&nbsp;)<\/span>/gi, ' ');

                    if (this.opts.pastePlainText)
                    {
                        return this.clean.getPlainText(html);
                    }

                    if (!this.utils.isSelectAll() && typeof setMode == 'undefined')
                    {
                        if (this.utils.isCurrentOrParent(['FIGCAPTION', 'A']))
                        {
                            return this.clean.getPlainText(html, false);
                        }

                        if (this.utils.isCurrentOrParent('PRE'))
                        {
                            html = html.replace(/”/g, '"');
                            html = html.replace(/“/g, '"');
                            html = html.replace(/‘/g, '\'');
                            html = html.replace(/’/g, '\'');

                            return this.clean.getPreCode(html);
                        }

                        if (this.utils.isCurrentOrParent(['BLOCKQUOTE', 'H1', 'H2', 'H3', 'H4', 'H5', 'H6']))
                        {
                            html = this.clean.getOnlyImages(html);

                            if (!this.utils.browser('msie'))
                            {
                                var block = this.selection.getBlock();
                                if (block && block.tagName == 'P')
                                {
                                    html = html.replace(/<img(.*?)>/gi, '<p><img$1></p>');
                                }
                            }

                            return html;
                        }

                        if (this.utils.isCurrentOrParent(['TD']))
                        {
                            html = this.clean.onPasteTidy(html, 'td');

                            if (this.opts.linebreaks) html = this.clean.replaceParagraphsToBr(html);

                            html = this.clean.replaceDivsToBr(html);

                            return html;
                        }


                        if (this.utils.isCurrentOrParent(['LI']))
                        {
                            return this.clean.onPasteTidy(html, 'li');
                        }
                    }


                    html = this.clean.isSingleLine(html, setMode);

                    if (!this.clean.singleLine)
                    {
                        if (this.opts.linebreaks)  html = this.clean.replaceParagraphsToBr(html);
                        if (this.opts.replaceDivs) html = this.clean.replaceDivs(html);

                        html = this.clean.saveFormTags(html);
                    }


                    html = this.clean.onPasteWord(html);
                    html = this.clean.onPasteExtra(html);

                    html = this.clean.onPasteTidy(html, 'all');


                    // paragraphize
                    if (!this.clean.singleLine && this.opts.paragraphize)
                    {
                        html = this.paragraphize.load(html);
                    }

                    html = this.clean.removeDirtyStyles(html);
                    html = this.clean.onPasteRemoveSpans(html);
                    html = this.clean.onPasteRemoveEmpty(html);


                    html = this.clean.convertInline(html);

                    return html;
                },
                onPasteWord: function(html)
                {
                    // comments
                    html = html.replace(/<!--[\s\S]*?-->/gi, '');

                    // style
                    html = html.replace(/<style[^>]*>[\s\S]*?<\/style>/gi, '');

                    if (/(class=\"?Mso|style=\"[^\"]*\bmso\-|w:WordDocument)/.test(html))
                    {
                        html = this.clean.onPasteIeFixLinks(html);

                        // shapes
                        html = html.replace(/<img(.*?)v:shapes=(.*?)>/gi, '');
                        html = html.replace(/src="file\:\/\/(.*?)"/, 'src=""');

                        // list
                        html = html.replace(/<p(.*?)class="MsoListParagraphCxSpFirst"([\w\W]*?)<\/p>/gi, '<ul><li$2</li>');
                        html = html.replace(/<p(.*?)class="MsoListParagraphCxSpMiddle"([\w\W]*?)<\/p>/gi, '<li$2</li>');
                        html = html.replace(/<p(.*?)class="MsoListParagraphCxSpLast"([\w\W]*?)<\/p>/gi, '<li$2</li></ul>');
                        // one line
                        html = html.replace(/<p(.*?)class="MsoListParagraph"([\w\W]*?)<\/p>/gi, '<ul><li$2</li></ul>');
                        // remove ms word's bullet
                        html = html.replace(/·/g, '');
                        html = html.replace(/<p class="Mso(.*?)"/gi, '<p');

                        // classes
                        html = html.replace(/ class=\"(mso[^\"]*)\"/gi, "");
                        html = html.replace(/ class=(mso\w+)/gi, "");

                        // remove ms word tags
                        html = html.replace(/<o:p(.*?)>([\w\W]*?)<\/o:p>/gi, '$2');

                        // ms word break lines
                        html = html.replace(/\n/g, ' ');

                        // ms word lists break lines
                        html = html.replace(/<p>\n?<li>/gi, '<li>');
                    }

                    // remove nbsp
                    if (this.opts.cleanSpaces)
                    {
                        html = html.replace(/(\s|&nbsp;)+/g, ' ');
                    }

                    return html;
                },
                onPasteExtra: function(html)
                {
                    // remove google docs markers
                    html = html.replace(/<b\sid="internal-source-marker(.*?)">([\w\W]*?)<\/b>/gi, "$2");
                    html = html.replace(/<b(.*?)id="docs-internal-guid(.*?)">([\w\W]*?)<\/b>/gi, "$3");

                    // google docs styles
                    html = html.replace(/<span[^>]*(font-style: italic; font-weight: bold|font-weight: bold; font-style: italic)[^>]*>/gi, '<span style="font-weight: bold;"><span style="font-style: italic;">');
                    html = html.replace(/<span[^>]*font-style: italic[^>]*>/gi, '<span style="font-style: italic;">');
                    html = html.replace(/<span[^>]*font-weight: bold[^>]*>/gi, '<span style="font-weight: bold;">');
                    html = html.replace(/<span[^>]*text-decoration: underline[^>]*>/gi, '<span style="text-decoration: underline;">');

                    html = html.replace(/<img>/gi, '');
                    html = html.replace(/\n{3,}/gi, '\n');
                    html = html.replace(/<font(.*?)>([\w\W]*?)<\/font>/gi, '$2');

                    // remove dirty p
                    html = html.replace(/<p><p>/gi, '<p>');
                    html = html.replace(/<\/p><\/p>/gi, '</p>');
                    html = html.replace(/<li>(\s*|\t*|\n*)<p>/gi, '<li>');
                    html = html.replace(/<\/p>(\s*|\t*|\n*)<\/li>/gi, '</li>');

                    // remove space between paragraphs
                    html = html.replace(/<\/p>\s<p/gi, '<\/p><p');

                    // remove safari local images
                    html = html.replace(/<img src="webkit-fake-url\:\/\/(.*?)"(.*?)>/gi, '');

                    // bullets
                    html = html.replace(/<p>•([\w\W]*?)<\/p>/gi, '<li>$1</li>');

                    // FF fix
                    if (this.utils.browser('mozilla'))
                    {
                        html = html.replace(/<br\s?\/?>$/gi, '');
                    }

                    return html;
                },
                onPasteTidy: function(html, type)
                {
                    // remove all tags except these
                    var tags = ['span', 'a', 'pre', 'blockquote', 'small', 'em', 'strong', 'code', 'kbd', 'mark', 'address', 'cite', 'var', 'samp', 'dfn', 'sup', 'sub', 'b', 'i', 'u', 'del',
                                'ol', 'ul', 'li', 'dl', 'dt', 'dd', 'p', 'br', 'video', 'audio', 'iframe', 'embed', 'param', 'object', 'img', 'table',
                                'td', 'th', 'tr', 'tbody', 'tfoot', 'thead', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6'];
                    var tagsEmpty = false;
                    var attrAllowed =  [
                            ['a', '*'],
                            ['img', ['src', 'alt']],
                            ['span', ['class', 'rel', 'data-verified']],
                            ['iframe', '*'],
                            ['video', '*'],
                            ['audio', '*'],
                            ['embed', '*'],
                            ['object', '*'],
                            ['param', '*'],
                            ['source', '*']
                        ];

                    if (type == 'all')
                    {
                        tagsEmpty = ['p', 'span', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6'];
                        attrAllowed =  [
                            ['table', 'class'],
                            ['td', ['colspan', 'rowspan']],
                            ['a', '*'],
                            ['img', ['src', 'alt', 'data-redactor-inserted-image']],
                            ['span', ['class', 'rel', 'data-verified']],
                            ['iframe', '*'],
                            ['video', '*'],
                            ['audio', '*'],
                            ['embed', '*'],
                            ['object', '*'],
                            ['param', '*'],
                            ['source', '*']
                        ];
                    }
                    else if (type == 'td')
                    {
                        // remove all tags except these and remove all table tags: tr, td etc
                        tags = ['ul', 'ol', 'li', 'span', 'a', 'small', 'em', 'strong', 'code', 'kbd', 'mark', 'cite', 'var', 'samp', 'dfn', 'sup', 'sub', 'b', 'i', 'u', 'del',
                                'ol', 'ul', 'li', 'dl', 'dt', 'dd', 'br', 'iframe', 'video', 'audio', 'embed', 'param', 'object', 'img', 'h1', 'h2', 'h3', 'h4', 'h5', 'h6'];

                    }
                    else if (type == 'li')
                    {
                        // only inline tags and ul, ol, li
                        tags = ['ul', 'ol', 'li', 'span', 'a', 'small', 'em', 'strong', 'code', 'kbd', 'mark', 'cite', 'var', 'samp', 'dfn', 'sup', 'sub', 'b', 'i', 'u', 'del', 'br',
                                'iframe', 'video', 'audio', 'embed', 'param', 'object', 'img'];
                    }

                    var options = {
                        deniedTags: (this.opts.deniedTags) ? this.opts.deniedTags : false,
                        allowedTags: (this.opts.allowedTags) ? this.opts.allowedTags : tags,
                        removeComments: true,
                        removePhp: true,
                        removeAttr: (this.opts.removeAttr) ? this.opts.removeAttr : false,
                        allowedAttr: (this.opts.allowedAttr) ? this.opts.allowedAttr : attrAllowed,
                        removeEmpty: tagsEmpty
                    };

                    return this.tidy.load(html, options);
                },
                onPasteRemoveEmpty: function(html)
                {
                    html = html.replace(/<(p|h[1-6])>(|\s|\n|\t|<br\s?\/?>)<\/(p|h[1-6])>/gi, '');

                    // remove br in the end
                    if (!this.opts.linebreaks) html = html.replace(/<br>$/i, '');

                    return html;
                },
                onPasteRemoveSpans: function(html)
                {
                    html = html.replace(/<span>(.*?)<\/span>/gi, '$1');
                    html = html.replace(/<span[^>]*>\s|&nbsp;<\/span>/gi, ' ');

                    return html;
                },
                onPasteIeFixLinks: function(html)
                {
                    if (!this.utils.browser('msie')) return html;

                    var tmp = $.trim(html);
                    if (tmp.search(/^<a(.*?)>(.*?)<\/a>$/i) === 0)
                    {
                        html = html.replace(/^<a(.*?)>(.*?)<\/a>$/i, "$2");
                    }

                    return html;
                },
                isSingleLine: function(html, setMode)
                {
                    this.clean.singleLine = false;

                    if (!this.utils.isSelectAll() && typeof setMode == 'undefined')
                    {
                        var blocks = this.opts.blockLevelElements.join('|').replace('P|', '').replace('DIV|', '');

                        var matchBlocks = html.match(new RegExp('</(' + blocks + ')>', 'gi'));
                        var matchContainers = html.match(/<\/(p|div)>/gi);

                        if (!matchBlocks && (matchContainers === null || (matchContainers && matchContainers.length <= 1)))
                        {
                            var matchBR = html.match(/<br\s?\/?>/gi);
                            var matchIMG = html.match(/<img(.*?[^>])>/gi);
                            if (!matchBR && !matchIMG)
                            {
                                this.clean.singleLine = true;
                                html = html.replace(/<\/?(p|div)(.*?)>/gi, '');
                            }
                        }
                    }

                    return html;
                },
                stripTags: function(input, allowed)
                {
                    allowed = (((allowed || '') + '').toLowerCase().match(/<[a-z][a-z0-9]*>/g) || []).join('');
                    var tags = /<\/?([a-z][a-z0-9]*)\b[^>]*>/gi;

                    return input.replace(tags, function ($0, $1) {
                        return allowed.indexOf('<' + $1.toLowerCase() + '>') > -1 ? $0 : '';
                    });
                },
                savePreCode: function(html)
                {
                    html = this.clean.savePreFormatting(html);
                    html = this.clean.saveCodeFormatting(html);

                    return html;
                },
                savePreFormatting: function(html)
                {
                    var pre = html.match(/<pre(.*?)>([\w\W]*?)<\/pre>/gi);
                    if (pre !== null)
                    {
                        $.each(pre, $.proxy(function(i,s)
                        {
                            var arr = s.match(/<pre(.*?)>([\w\W]*?)<\/pre>/i);

                            arr[2] = arr[2].replace(/<br\s?\/?>/g, '\n');
                            arr[2] = arr[2].replace(/&nbsp;/g, ' ');

                            if (this.opts.preSpaces)
                            {
                                arr[2] = arr[2].replace(/\t/g, Array(this.opts.preSpaces + 1).join(' '));
                            }

                            arr[2] = this.clean.encodeEntities(arr[2]);

                            // $ fix
                            arr[2] = arr[2].replace(/\$/g, '&#36;');

                            html = html.replace(s, '<pre' + arr[1] + '>' + arr[2] + '</pre>');

                        }, this));
                    }

                    return html;
                },
                saveCodeFormatting: function(html)
                {
                    var code = html.match(/<code(.*?[^>])>(.*?)<\/code>/gi);
                    if (code !== null)
                    {
                        $.each(code, $.proxy(function(i,s)
                        {
                            var arr = s.match(/<code(.*?[^>])>(.*?)<\/code>/i);

                            arr[2] = arr[2].replace(/&nbsp;/g, ' ');
                            arr[2] = this.clean.encodeEntities(arr[2]);

                            // $ fix
                            arr[2] = arr[2].replace(/\$/g, '&#36;');

                            html = html.replace(s, '<code' + arr[1] + '>' + arr[2] + '</code>');

                        }, this));
                    }

                    return html;
                },
                getTextFromHtml: function(html)
                {
                    html = html.replace(/<br\s?\/?>|<\/H[1-6]>|<\/p>|<\/div>|<\/li>|<\/td>/gi, '\n');

                    var tmp = document.createElement('div');
                    tmp.innerHTML = html;
                    html = tmp.textContent || tmp.innerText;

                    return $.trim(html);
                },
                getPlainText: function(html, paragraphize)
                {
                    html = this.clean.getTextFromHtml(html);
                    html = html.replace(/\n/g, '<br />');

                    if (this.opts.paragraphize && typeof paragraphize == 'undefined' && !this.utils.browser('mozilla'))
                    {
                        html = this.paragraphize.load(html);
                    }

                    return html;
                },
                getPreCode: function(html)
                {
                    html = html.replace(/<img(.*?) style="(.*?)"(.*?[^>])>/gi, '<img$1$3>');
                    html = html.replace(/<img(.*?)>/gi, '&lt;img$1&gt;');
                    html = this.clean.getTextFromHtml(html);

                    if (this.opts.preSpaces)
                    {
                        html = html.replace(/\t/g, Array(this.opts.preSpaces + 1).join(' '));
                    }

                    html = this.clean.encodeEntities(html);

                    return html;
                },
                getOnlyImages: function(html)
                {
                    html = html.replace(/<img(.*?)>/gi, '[img$1]');

                    // remove all tags
                    html = html.replace(/<([Ss]*?)>/gi, '');

                    html = html.replace(/\[img(.*?)\]/gi, '<img$1>');

                    return html;
                },
                getOnlyLinksAndImages: function(html)
                {
                    html = html.replace(/<a(.*?)href="(.*?)"(.*?)>([\w\W]*?)<\/a>/gi, '[a href="$2"]$4[/a]');
                    html = html.replace(/<img(.*?)>/gi, '[img$1]');

                    // remove all tags
                    html = html.replace(/<(.*?)>/gi, '');

                    html = html.replace(/\[a href="(.*?)"\]([\w\W]*?)\[\/a\]/gi, '<a href="$1">$2</a>');
                    html = html.replace(/\[img(.*?)\]/gi, '<img$1>');

                    return html;
                },
                encodeEntities: function(str)
                {
                    str = String(str).replace(/&amp;/g, '&').replace(/&lt;/g, '<').replace(/&gt;/g, '>').replace(/&quot;/g, '"');
                    return str.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;').replace(/"/g, '&quot;');
                },
                removeDirtyStyles: function(html)
                {
                    if (this.utils.browser('msie')) return html;

                    var div = document.createElement('div');
                    div.innerHTML = html;

                    this.clean.clearUnverifiedRemove($(div));

                    html = div.innerHTML;
                    $(div).remove();

                    return html;
                },
                clearUnverified: function()
                {
                    if (this.utils.browser('msie')) return;

                    this.clean.clearUnverifiedRemove(this.$editor);

                    var headers = this.$editor.find('h1, h2, h3, h4, h5, h6');
                    headers.find('span').removeAttr('style');
                    headers.find(this.opts.verifiedTags.join(', ')).removeAttr('style');

                    this.code.sync();
                },
                clearUnverifiedRemove: function($editor)
                {
                    $editor.find(this.opts.verifiedTags.join(', ')).removeAttr('style');
                    $editor.find('span').not('[data-verified="redactor"]').removeAttr('style');

                    $editor.find('span[data-verified="redactor"], img[data-verified="redactor"]').each(function(i, s)
                    {
                        var $s = $(s);
                        $s.attr('style', $s.attr('rel'));
                    });

                },
                cleanEmptyParagraph: function()
                {
                    var p = this.$editor.find("p").first();

                    if (this.utils.isEmpty(p.html()))
                    {
                        p.remove();
                    }
                },
                setVerified: function(html)
                {
                    if (this.utils.browser('msie')) return html;

                    html = html.replace(new RegExp('<img(.*?[^>])>', 'gi'), '<img$1 data-verified="redactor">');
                    html = html.replace(new RegExp('<span(.*?[^>])>', 'gi'), '<span$1 data-verified="redactor">');

                    var matches = html.match(new RegExp('<(span|img)(.*?)style="(.*?)"(.*?[^>])>', 'gi'));

                    if (matches)
                    {
                        var len = matches.length;
                        for (var i = 0; i < len; i++)
                        {
                            try {

                                var newTag = matches[i].replace(/style="(.*?)"/i, 'style="$1" rel="$1"');
                                html = html.replace(matches[i], newTag);

                            }
                            catch (e) {}
                        }
                    }

                    return html;
                },
                convertInline: function(html)
                {
                    var $div = $('<div />').html(html);

                    var tags = this.opts.inlineTags;
                    tags.push('span');

                    $div.find(tags.join(',')).each(function()
                    {
                        var $el = $(this);
                        var tag = this.tagName.toLowerCase();
                        $el.attr('data-redactor-tag', tag);

                        if (tag == 'span')
                        {
                            if ($el.attr('style')) $el.attr('data-redactor-style', $el.attr('style'));
                            else if ($el.attr('class')) $el.attr('data-redactor-class', $el.attr('class'));
                        }

                    });

                    html = $div.html();
                    $div.remove();

                    return html;
                },
                normalizeLists: function()
                {
                    this.$editor.find('li').each(function(i,s)
                    {
                        var $next = $(s).next();
                        if ($next.length !== 0 && ($next[0].tagName == 'UL' || $next[0].tagName == 'OL'))
                        {
                            $(s).append($next);
                        }

                    });
                },
                removeSpaces: function(html)
                {
                    html = html.replace(/\n/g, '');
                    html = html.replace(/[\t]*/g, '');
                    html = html.replace(/\n\s*\n/g, "\n");
                    html = html.replace(/^[\s\n]*/g, ' ');
                    html = html.replace(/[\s\n]*$/g, ' ');
                    html = html.replace( />\s{2,}</g, '> <'); // between inline tags can be only one space
                    html = html.replace(/\n\n/g, "\n");
                    html = html.replace(/[\u200B-\u200D\uFEFF]/g, '');

                    return html;
                },
                replaceDivs: function(html)
                {
                    if (this.opts.linebreaks)
                    {
                        html = html.replace(/<div><br\s?\/?><\/div>/gi, '<br />');
                        html = html.replace(/<div(.*?)>([\w\W]*?)<\/div>/gi, '$2<br />');
                    }
                    else
                    {
                        html = html.replace(/<div(.*?)>([\w\W]*?)<\/div>/gi, '<p$1>$2</p>');
                    }

                    html = html.replace(/<div(.*?[^>])>/gi, '');
                    html = html.replace(/<\/div>/gi, '');

                    return html;
                },
                replaceDivsToBr: function(html)
                {
                    html = html.replace(/<div\s(.*?)>/gi, '<p>');
                    html = html.replace(/<div><br\s?\/?><\/div>/gi, '<br /><br />');
                    html = html.replace(/<div>([\w\W]*?)<\/div>/gi, '$1<br /><br />');

                    return html;
                },
                replaceParagraphsToBr: function(html)
                {
                    html = html.replace(/<p\s(.*?)>/gi, '<p>');
                    html = html.replace(/<p><br\s?\/?><\/p>/gi, '<br />');
                    html = html.replace(/<p>([\w\W]*?)<\/p>/gi, '$1<br /><br />');
                    html = html.replace(/(<br\s?\/?>){1,}\n?<\/blockquote>/gi, '</blockquote>');

                    return html;
                },
                saveFormTags: function(html)
                {
                    return html.replace(/<form(.*?)>([\w\W]*?)<\/form>/gi, '<section$1 rel="redactor-form-tag">$2</section>');
                },
                restoreFormTags: function(html)
                {
                    return html.replace(/<section(.*?) rel="redactor-form-tag"(.*?)>([\w\W]*?)<\/section>/gi, '<form$1$2>$3</form>');
                }
            };
        },
        code: function()
        {
            return {
                set: function(html)
                {
                    html = $.trim(html.toString());

                    // clean
                    html = this.clean.onSet(html);

                    this.$editor.html(html);
                    this.code.sync();

                    if (html !== '') this.placeholder.remove();

                    setTimeout($.proxy(this.buffer.add, this), 15);
                    if (this.start === false) this.observe.load();

                },
                get: function()
                {
                    var code = this.$textarea.val();

                    // indent code
                    code = this.tabifier.get(code);

                    return code;
                },
                sync: function()
                {
                    setTimeout($.proxy(this.code.startSync, this), 10);
                },
                startSync: function()
                {
                    var html = this.$editor.html();

                    // is there a need to synchronize
                    if (this.code.syncCode && this.code.syncCode == html)
                    {
                        // do not sync
                        return;
                    }

                    // save code
                    this.code.syncCode = html;

                    // before clean callback
                    html = this.core.setCallback('syncBefore', html);

                    // clean
                    html = this.clean.onSync(html);

                    // set code
                    this.$textarea.val(html);

                    // after sync callback
                    this.core.setCallback('sync', html);

                    if (this.start === false)
                    {
                        this.core.setCallback('change', html);
                    }

                    this.start = false;

                    if (this.autosave.html == false)
                    {
                        this.autosave.html = this.code.get();
                    }

                    if (this.opts.codemirror)
                    {
                        this.$textarea.next('.CodeMirror').each(function(i, el)
                        {
                            el.CodeMirror.setValue(html);
                        });
                    }

                    //autosave
                    this.autosave.onChange();
                    this.autosave.enable();
                },
                toggle: function()
                {
                    if (this.opts.visual)
                    {
                        this.code.showCode();
                    }
                    else
                    {
                        this.code.showVisual();
                    }
                },
                showCode: function()
                {
                    this.code.offset = this.caret.getOffset();
                    var scroll = $(window).scrollTop();

                    var width = this.$editor.innerWidth(),
                        height = this.$editor.innerHeight();

                    this.$editor.hide();

                    var html = this.$textarea.val();
                    this.modified = this.clean.removeSpaces(html);

                    // indent code
                    html = this.tabifier.get(html);

                    this.$textarea.val(html);

                    if (this.opts.codemirror)
                    {
                        this.$textarea.next('.CodeMirror').each(function(i, el)
                        {
                            $(el).show();
                            el.CodeMirror.setValue(html);
                            el.CodeMirror.setSize(width, height);
                            el.CodeMirror.refresh();
                            el.CodeMirror.focus();
                        });
                    }
                    else
                    {
                        this.$textarea.height(height).show().focus();
                        this.$textarea.on('keydown.redactor-textarea-indenting', this.code.textareaIndenting);

                        $(window).scrollTop(scroll);

                        if (this.$textarea[0].setSelectionRange)
                        {
                            this.$textarea[0].setSelectionRange(0, 0);
                        }

                        this.$textarea[0].scrollTop = 0;
                    }

                    this.opts.visual = false;

                    this.button.setInactiveInCode();
                    this.button.setActive('html');
                    this.core.setCallback('source', html);
                },
                showVisual: function()
                {
                    var html;

                    if (this.opts.visual) return;

                    if (this.opts.codemirror)
                    {
                        this.$textarea.next('.CodeMirror').each(function(i, el)
                        {
                            html = el.CodeMirror.getValue();
                        });
                    }
                    else
                    {
                        html = this.$textarea.hide().val();
                    }

                    if (this.modified !== this.clean.removeSpaces(html))
                    {
                        this.code.set(html);
                    }

                    if (this.opts.codemirror)
                    {
                        this.$textarea.next('.CodeMirror').hide();
                    }

                    this.$editor.show();

                    if (!this.utils.isEmpty(html))
                    {
                        this.placeholder.remove();
                    }

                    this.caret.setOffset(this.code.offset);

                    this.$textarea.off('keydown.redactor-textarea-indenting');

                    this.button.setActiveInVisual();
                    this.button.setInactive('html');

                    this.observe.load();
                    this.opts.visual = true;
                    this.core.setCallback('visual', html);
                },
                textareaIndenting: function(e)
                {
                    if (e.keyCode !== 9) return true;

                    var $el = this.$textarea;
                    var start = $el.get(0).selectionStart;
                    $el.val($el.val().substring(0, start) + "\t" + $el.val().substring($el.get(0).selectionEnd));
                    $el.get(0).selectionStart = $el.get(0).selectionEnd = start + 1;

                    return false;
                }
            };
        },
        core: function()
        {
            return {
                getObject: function()
                {
                    return $.extend({}, this);
                },
                getEditor: function()
                {
                    return this.$editor;
                },
                getBox: function()
                {
                    return this.$box;
                },
                getElement: function()
                {
                    return this.$element;
                },
                getTextarea: function()
                {
                    return this.$textarea;
                },
                getToolbar: function()
                {
                    return (this.$toolbar) ? this.$toolbar : false;
                },
                addEvent: function(name)
                {
                    this.core.event = name;
                },
                getEvent: function()
                {
                    return this.core.event;
                },
                setCallback: function(type, e, data)
                {
                    var callback = this.opts[type + 'Callback'];
                    if ($.isFunction(callback))
                    {
                        return (typeof data == 'undefined') ? callback.call(this, e) : callback.call(this, e, data);
                    }
                    else
                    {
                        return (typeof data == 'undefined') ? e : data;
                    }
                },
                destroy: function()
                {
                    this.core.setCallback('destroy');

                    // off events and remove data
                    this.$element.off('.redactor').removeData('redactor');
                    this.$editor.off('.redactor');

                    $(document).off('click.redactor-image-delete.' + this.uuid);
                    $(document).off('click.redactor-image-resize-hide.' + this.uuid);
                    $(document).off('touchstart.redactor.' + this.uuid + ' click.redactor.' + this.uuid);
                    $("body").off('scroll.redactor.' + this.uuid);
                    $(this.opts.toolbarFixedTarget).off('scroll.redactor.' + this.uuid);

                    // common
                    this.$editor.removeClass('redactor-editor redactor-linebreaks redactor-placeholder');
                    this.$editor.removeAttr('contenteditable');

                    var html = this.code.get();

                    // dropdowns off
                    this.$toolbar.find('a').each(function()
                    {
                        var $el = $(this);
                        if ($el.data('dropdown'))
                        {
                            $el.data('dropdown').remove();
                            $el.data('dropdown', {});
                        }
                    });


                    if (this.build.isTextarea())
                    {
                        this.$box.after(this.$element);
                        this.$box.remove();
                        this.$element.val(html).show();
                    }
                    else
                    {
                        this.$box.after(this.$editor);
                        this.$box.remove();
                        this.$element.html(html).show();
                    }

                    // paste box
                    if (this.$pasteBox) this.$pasteBox.remove();

                    // modal
                    if (this.$modalBox) this.$modalBox.remove();
                    if (this.$modalOverlay) this.$modalOverlay.remove();

                    // buttons tooltip
                    $('.redactor-toolbar-tooltip').remove();

                    // autosave
                    clearInterval(this.autosaveInterval);

                }
            };
        },
        dropdown: function()
        {
            return {
                build: function(name, $dropdown, dropdownObject)
                {
                    if (name == 'formatting' && this.opts.formattingAdd)
                    {
                        $.each(this.opts.formattingAdd, $.proxy(function(i,s)
                        {
                            var name = s.tag,
                                func;

                            if (typeof s['class'] != 'undefined')
                            {
                                name = name + '-' + s['class'];
                            }

                            s.type = (this.utils.isBlockTag(s.tag)) ? 'block' : 'inline';

                            if (typeof s.func !== "undefined")
                            {
                                func = s.func;
                            }
                            else
                            {
                                func = (s.type == 'inline') ? 'inline.formatting' : 'block.formatting';
                            }

                            if (this.opts.linebreaks && s.type == 'block' && s.tag == 'p') return;

                            this.formatting[name] = {
                                tag: s.tag,
                                style: s.style,
                                'class': s['class'],
                                attr: s.attr,
                                data: s.data,
                                clear: s.clear
                            };

                            dropdownObject[name] = {
                                func: func,
                                title: s.title
                            };

                        }, this));

                    }

                    $.each(dropdownObject, $.proxy(function(btnName, btnObject)
                    {
                        var $item = $('<a href="#" class="redactor-dropdown-' + btnName + '">' + btnObject.title + '</a>');
                        if (name == 'formatting') $item.addClass('redactor-formatting-' + btnName);

                        $item.on('click', $.proxy(function(e)
                        {
                            e.preventDefault();

                            var type = 'func';
                            var callback = btnObject.func;
                            if (btnObject.command)
                            {
                                type = 'command';
                                callback = btnObject.command;
                            }
                            else if (btnObject.dropdown)
                            {
                                type = 'dropdown';
                                callback = btnObject.dropdown;
                            }

                            this.button.onClick(e, btnName, type, callback);
                            this.dropdown.hideAll();

                        }, this));

                        $dropdown.append($item);

                    }, this));
                },
                show: function(e, key)
                {
                    if (!this.opts.visual)
                    {
                        e.preventDefault();
                        return false;
                    }

                    var $button = this.button.get(key);

                    // Always re-append it to the end of <body> so it always has the highest sub-z-index.
                    var $dropdown = $button.data('dropdown').appendTo(document.body);

                    // ios keyboard hide
                    if (this.utils.isMobile() && !this.utils.browser('msie'))
                    {
                        document.activeElement.blur();
                    }

                    if ($button.hasClass('dropact'))
                    {
                        this.dropdown.hideAll();
                    }
                    else
                    {
                        this.dropdown.hideAll();
                        this.core.setCallback('dropdownShow', { dropdown: $dropdown, key: key, button: $button });

                        this.button.setActive(key);

                        $button.addClass('dropact');

                        var keyPosition = $button.offset();

                        // fix right placement
                        var dropdownWidth = $dropdown.width();
                        if ((keyPosition.left + dropdownWidth) > $(document).width())
                        {
                            keyPosition.left = Math.max(0, keyPosition.left - dropdownWidth);
                        }

                        var left = keyPosition.left + 'px';
                        if (this.$toolbar.hasClass('toolbar-fixed-box'))
                        {
                            var top = this.$toolbar.innerHeight() + this.opts.toolbarFixedTopOffset;
                            var position = 'fixed';
                            if (this.opts.toolbarFixedTarget !== document)
                            {
                                top = (this.$toolbar.innerHeight() + this.$toolbar.offset().top) + this.opts.toolbarFixedTopOffset;
                                position = 'absolute';
                            }

                            $dropdown.css({ position: position, left: left, top: top + 'px' }).show();
                        }
                        else
                        {
                            var top = ($button.innerHeight() + keyPosition.top) + 'px';

                            $dropdown.css({ position: 'absolute', left: left, top: top }).show();
                        }

                        this.core.setCallback('dropdownShown', { dropdown: $dropdown, key: key, button: $button });
                    }

                    $(document).one('click', $.proxy(this.dropdown.hide, this));
                    this.$editor.one('click', $.proxy(this.dropdown.hide, this));

                    // disable scroll whan dropdown scroll
                    var $body = $(document.body);
                    var width = $body.width();

                    $dropdown.on('mouseover', function() {

                        $body.addClass('body-redactor-hidden');
                        $body.css('margin-right', ($body.width() - width) + 'px');

                     });

                    $dropdown.on('mouseout', function() {

                        $body.removeClass('body-redactor-hidden').css('margin-right', 0);

                    });


                    e.stopPropagation();
                },
                hideAll: function()
                {
                    this.$toolbar.find('a.dropact').removeClass('redactor-act').removeClass('dropact');

                    $(document.body).removeClass('body-redactor-hidden').css('margin-right', 0);
                    $('.redactor-dropdown-' + this.uuid).hide();
                    this.core.setCallback('dropdownHide');
                },
                hide: function (e)
                {
                    var $dropdown = $(e.target);
                    if (!$dropdown.hasClass('dropact'))
                    {
                        $dropdown.removeClass('dropact');
                        this.dropdown.hideAll();
                    }
                }
            };
        },
        file: function()
        {
            return {
                show: function()
                {
                    this.modal.load('file', this.lang.get('file'), 700);
                    this.upload.init('#redactor-modal-file-upload', this.opts.fileUpload, this.file.insert);

                    this.selection.save();

                    this.selection.get();
                    var text = this.sel.toString();

                    $('#redactor-filename').val(text);

                    this.modal.show();
                },
                insert: function(json, direct, e)
                {
                    // error callback
                    if (typeof json.error != 'undefined')
                    {
                        this.modal.close();
                        this.selection.restore();
                        this.core.setCallback('fileUploadError', json);
                        return;
                    }

                    var link;
                    if (typeof json == 'string')
                    {
                        link = json;
                    }
                    else
                    {
                        var text = $('#redactor-filename').val();
                        if (typeof text == 'undefined' || text === '') text = json.filename;

                        link = '<a href="' + json.filelink + '" id="filelink-marker">' + text + '</a>';
                    }

                    if (direct)
                    {
                        this.selection.removeMarkers();
                        var marker = this.selection.getMarker();
                        this.insert.nodeToCaretPositionFromPoint(e, marker);
                    }
                    else
                    {
                        this.modal.close();
                    }

                    this.selection.restore();
                    this.buffer.set();

                    this.insert.htmlWithoutClean(link);

                    if (typeof json == 'string') return;

                    var linkmarker = $(this.$editor.find('a#filelink-marker'));
                    if (linkmarker.length !== 0)
                    {
                        linkmarker.removeAttr('id').removeAttr('style');
                    }
                    else linkmarker = false;

                    this.core.setCallback('fileUpload', linkmarker, json);

                }
            };
        },
        focus: function()
        {
            return {
                setStart: function()
                {
                    this.$editor.focus();

                    var first = this.$editor.children().first();

                    if (first.length === 0) return;
                    if (first[0].length === 0 || first[0].tagName == 'BR' || first[0].nodeType == 3)
                    {
                        return;
                    }

                    if (first[0].tagName == 'UL' || first[0].tagName == 'OL')
                    {
                        var child = first.find('li').first();
                        if (!this.utils.isBlock(child) && child.text() === '')
                        {
                            // empty inline tag in li
                            this.caret.setStart(child);
                            return;
                        }
                    }

                    if (this.opts.linebreaks && !this.utils.isBlockTag(first[0].tagName))
                    {
                        this.selection.get();
                        this.range.setStart(this.$editor[0], 0);
                        this.range.setEnd(this.$editor[0], 0);
                        this.selection.addRange();

                        return;
                    }

                    // if node is tag
                    this.caret.setStart(first);
                },
                setEnd: function()
                {
                    if (this.utils.browser('mozilla') || this.utils.browser('msie'))
                    {
                        var last = this.$editor.children().last();

                        this.$editor.focus();
                        this.caret.setEnd(last);
                    }
                    else
                    {
                        this.selection.get();

                        try {
                            this.range.selectNodeContents(this.$editor[0]);
                            this.range.collapse(false);

                            this.selection.addRange();
                        }
                        catch (e) {}
                    }

                },
                isFocused: function()
                {
                    var focusNode = document.getSelection().focusNode;
                    if (focusNode === null) return false;

                    if (this.opts.linebreaks && $(focusNode.parentNode).hasClass('redactor-linebreaks')) return true;
                    else if (!this.utils.isRedactorParent(focusNode.parentNode)) return false;

                    return this.$editor.is(':focus');
                }
            };
        },
        image: function()
        {
            return {
                show: function()
                {
                    this.modal.load('image', this.lang.get('image'), 700);
                    this.upload.init('#redactor-modal-image-droparea', this.opts.imageUpload, this.image.insert);

                    this.selection.save();
                    this.modal.show();

                },
                showEdit: function($image)
                {
                    var $link = $image.closest('a', this.$editor[0]);

                    this.modal.load('imageEdit', this.lang.get('edit'), 705);

                    this.modal.createCancelButton();
                    this.image.buttonDelete = this.modal.createDeleteButton(this.lang.get('_delete'));
                    this.image.buttonSave = this.modal.createActionButton(this.lang.get('save'));

                    this.image.buttonDelete.on('click', $.proxy(function()
                    {
                        this.image.remove($image);

                    }, this));

                    this.image.buttonSave.on('click', $.proxy(function()
                    {
                        this.image.update($image);

                    }, this));

                    $('#redactor-image-title').val($image.attr('alt'));

                    if (!this.opts.imageLink) $('.redactor-image-link-option').hide();
                    else
                    {
                        var $redactorImageLink = $('#redactor-image-link');

                        $redactorImageLink.attr('href', $image.attr('src'));
                        if ($link.length !== 0)
                        {
                            $redactorImageLink.val($link.attr('href'));
                            if ($link.attr('target') == '_blank') $('#redactor-image-link-blank').prop('checked', true);
                        }
                    }

                    if (!this.opts.imagePosition) $('.redactor-image-position-option').hide();
                    else
                    {
                        var floatValue = ($image.css('display') == 'block' && $image.css('float') == 'none') ? 'center' : $image.css('float');
                        $('#redactor-image-align').val(floatValue);
                    }

                    this.modal.show();

                },
                setFloating: function($image)
                {
                    var floating = $('#redactor-image-align').val();

                    var imageFloat = '';
                    var imageDisplay = '';
                    var imageMargin = '';

                    switch (floating)
                    {
                        case 'left':
                            imageFloat = 'left';
                            imageMargin = '0 ' + this.opts.imageFloatMargin + ' ' + this.opts.imageFloatMargin + ' 0';
                        break;
                        case 'right':
                            imageFloat = 'right';
                            imageMargin = '0 0 ' + this.opts.imageFloatMargin + ' ' + this.opts.imageFloatMargin;
                        break;
                        case 'center':
                            imageDisplay = 'block';
                            imageMargin = 'auto';
                        break;
                    }

                    $image.css({ 'float': imageFloat, display: imageDisplay, margin: imageMargin });
                    $image.attr('rel', $image.attr('style'));
                },
                update: function($image)
                {
                    this.image.hideResize();
                    this.buffer.set();

                    var $link = $image.closest('a', this.$editor[0]);

                    $image.attr('alt', $('#redactor-image-title').val());

                    this.image.setFloating($image);

                    // as link
                    var link = $.trim($('#redactor-image-link').val());
                    if (link !== '')
                    {
                        // test url (add protocol)
                        var pattern = '((xn--)?[a-z0-9]+(-[a-z0-9]+)*\\.)+[a-z]{2,}';
                        var re = new RegExp('^(http|ftp|https)://' + pattern, 'i');
                        var re2 = new RegExp('^' + pattern, 'i');

                        if (link.search(re) == -1 && link.search(re2) === 0 && this.opts.linkProtocol)
                        {
                            link = this.opts.linkProtocol + '://' + link;
                        }

                        var target = ($('#redactor-image-link-blank').prop('checked')) ? true : false;

                        if ($link.length === 0)
                        {
                            var a = $('<a href="' + link + '">' + this.utils.getOuterHtml($image) + '</a>');
                            if (target) a.attr('target', '_blank');

                            $image.replaceWith(a);
                        }
                        else
                        {
                            $link.attr('href', link);
                            if (target)
                            {
                                $link.attr('target', '_blank');
                            }
                            else
                            {
                                $link.removeAttr('target');
                            }
                        }
                    }
                    else if ($link.length !== 0)
                    {
                        $link.replaceWith(this.utils.getOuterHtml($image));

                    }

                    this.modal.close();
                    this.observe.images();
                    this.code.sync();


                },
                setEditable: function($image)
                {
                    if (this.opts.imageEditable)
                    {
                        $image.on('dragstart', $.proxy(this.image.onDrag, this));
                    }

                    $image.on('mousedown', $.proxy(this.image.hideResize, this));
                    $image.on('click.redactor touchstart', $.proxy(function(e)
                    {
                        this.observe.image = $image;

                        if (this.$editor.find('#redactor-image-box').length !== 0) return false;

                        this.image.resizer = this.image.loadEditableControls($image);

                        $(document).on('click.redactor-image-resize-hide.' + this.uuid, $.proxy(this.image.hideResize, this));
                        this.$editor.on('click.redactor-image-resize-hide.' + this.uuid, $.proxy(this.image.hideResize, this));

                        // resize
                        if (!this.opts.imageResizable) return;

                        this.image.resizer.on('mousedown.redactor touchstart.redactor', $.proxy(function(e)
                        {
                            this.image.setResizable(e, $image);
                        }, this));


                    }, this));
                },
                setResizable: function(e, $image)
                {
                    e.preventDefault();

                    this.image.resizeHandle = {
                        x : e.pageX,
                        y : e.pageY,
                        el : $image,
                        ratio: $image.width() / $image.height(),
                        h: $image.height()
                    };

                    e = e.originalEvent || e;

                    if (e.targetTouches)
                    {
                         this.image.resizeHandle.x = e.targetTouches[0].pageX;
                         this.image.resizeHandle.y = e.targetTouches[0].pageY;
                    }

                    this.image.startResize();


                },
                startResize: function()
                {
                    $(document).on('mousemove.redactor-image-resize touchmove.redactor-image-resize', $.proxy(this.image.moveResize, this));
                    $(document).on('mouseup.redactor-image-resize touchend.redactor-image-resize', $.proxy(this.image.stopResize, this));
                },
                moveResize: function(e)
                {
                    e.preventDefault();

                    e = e.originalEvent || e;

                    var height = this.image.resizeHandle.h;

                    if (e.targetTouches) height += (e.targetTouches[0].pageY -  this.image.resizeHandle.y);
                    else height += (e.pageY -  this.image.resizeHandle.y);

                    var width = Math.round(height * this.image.resizeHandle.ratio);

                    if (height < 50 || width < 100) return;

                    var height = Math.round(this.image.resizeHandle.el.width() / this.image.resizeHandle.ratio);

                    this.image.resizeHandle.el.attr({width: width, height: height});
                    this.image.resizeHandle.el.width(width);
                    this.image.resizeHandle.el.height(height);

                    this.code.sync();
                },
                stopResize: function()
                {
                    this.handle = false;
                    $(document).off('.redactor-image-resize');

                    this.image.hideResize();
                },
                onDrag: function(e)
                {
                    if (this.$editor.find('#redactor-image-box').length !== 0)
                    {
                        e.preventDefault();
                        return false;
                    }

                    this.$editor.on('drop.redactor-image-inside-drop', $.proxy(function()
                    {
                        setTimeout($.proxy(this.image.onDrop, this), 1);

                    }, this));
                },
                onDrop: function()
                {
                    this.image.fixImageSourceAfterDrop();
                    this.observe.images();
                    this.$editor.off('drop.redactor-image-inside-drop');
                    this.clean.clearUnverified();
                    this.code.sync();
                },
                fixImageSourceAfterDrop: function()
                {
                    this.$editor.find('img[data-save-url]').each(function()
                    {
                        var $el = $(this);
                        $el.attr('src', $el.attr('data-save-url'));
                        $el.removeAttr('data-save-url');
                    });
                },
                hideResize: function(e)
                {
                    if (e && $(e.target).closest('#redactor-image-box', this.$editor[0]).length !== 0) return;
                    if (e && e.target.tagName == 'IMG')
                    {
                        var $image = $(e.target);
                        $image.attr('data-save-url', $image.attr('src'));
                    }

                    var imageBox = this.$editor.find('#redactor-image-box');
                    if (imageBox.length === 0) return;

                    if (this.opts.imageEditable)
                    {
                        this.image.editter.remove();
                    }

                    $(this.image.resizer).remove();

                    imageBox.find('img').css({
                        marginTop: imageBox[0].style.marginTop,
                        marginBottom: imageBox[0].style.marginBottom,
                        marginLeft: imageBox[0].style.marginLeft,
                        marginRight: imageBox[0].style.marginRight
                    });

                    imageBox.css('margin', '');
                    imageBox.find('img').css('opacity', '');
                    imageBox.replaceWith(function()
                    {
                        return $(this).contents();
                    });

                    $(document).off('click.redactor-image-resize-hide.' + this.uuid);
                    this.$editor.off('click.redactor-image-resize-hide.' + this.uuid);

                    if (typeof this.image.resizeHandle !== 'undefined')
                    {
                        this.image.resizeHandle.el.attr('rel', this.image.resizeHandle.el.attr('style'));
                    }

                    this.code.sync();

                },
                loadResizableControls: function($image, imageBox)
                {
                    if (this.opts.imageResizable && !this.utils.isMobile())
                    {
                        var imageResizer = $('<span id="redactor-image-resizer" data-redactor="verified"></span>');

                        if (!this.utils.isDesktop())
                        {
                            imageResizer.css({ width: '15px', height: '15px' });
                        }

                        imageResizer.attr('contenteditable', false);
                        imageBox.append(imageResizer);
                        imageBox.append($image);

                        return imageResizer;
                    }
                    else
                    {
                        imageBox.append($image);
                        return false;
                    }
                },
                loadEditableControls: function($image)
                {
                    var imageBox = $('<span id="redactor-image-box" data-redactor="verified">');
                    imageBox.css('float', $image.css('float')).attr('contenteditable', false);

                    if ($image[0].style.margin != 'auto')
                    {
                        imageBox.css({
                            marginTop: $image[0].style.marginTop,
                            marginBottom: $image[0].style.marginBottom,
                            marginLeft: $image[0].style.marginLeft,
                            marginRight: $image[0].style.marginRight
                        });

                        $image.css('margin', '');
                    }
                    else
                    {
                        imageBox.css({ 'display': 'block', 'margin': 'auto' });
                    }

                    $image.css('opacity', '.5').after(imageBox);


                    if (this.opts.imageEditable)
                    {
                        // editter
                        this.image.editter = $('<span id="redactor-image-editter" data-redactor="verified">' + this.lang.get('edit') + '</span>');
                        this.image.editter.attr('contenteditable', false);
                        this.image.editter.on('click', $.proxy(function()
                        {
                            this.image.showEdit($image);
                        }, this));

                        imageBox.append(this.image.editter);

                        // position correction
                        var editerWidth = this.image.editter.innerWidth();
                        this.image.editter.css('margin-left', '-' + editerWidth/2 + 'px');
                    }

                    return this.image.loadResizableControls($image, imageBox);

                },
                remove: function(image)
                {
                    var $image = $(image);
                    var $link = $image.closest('a', this.$editor[0]);
                    var $figure = $image.closest('figure', this.$editor[0]);
                    var $parent = $image.parent();
                    if ($('#redactor-image-box').length !== 0)
                    {
                        $parent = $('#redactor-image-box').parent();
                    }

                    var $next;
                    if ($figure.length !== 0)
                    {
                        $next = $figure.next();
                        $figure.remove();
                    }
                    else if ($link.length !== 0)
                    {
                        $parent = $link.parent();
                        $link.remove();
                    }
                    else
                    {
                        $image.remove();
                    }

                    $('#redactor-image-box').remove();

                    if ($figure.length !== 0)
                    {
                        this.caret.setStart($next);
                    }
                    else
                    {
                        this.caret.setStart($parent);
                    }

                    // delete callback
                    this.core.setCallback('imageDelete', $image[0].src, $image);

                    this.modal.close();
                    this.code.sync();
                },
                insert: function(json, direct, e)
                {
                    // error callback
                    if (typeof json.error != 'undefined')
                    {
                        this.modal.close();
                        this.selection.restore();
                        this.core.setCallback('imageUploadError', json);
                        return;
                    }

                    var $img;
                    if (typeof json == 'string')
                    {
                        $img = $(json).attr('data-redactor-inserted-image', 'true');
                    }
                    else
                    {
                        $img = $('<img>');
                        $img.attr('src', json.filelink).attr('data-redactor-inserted-image', 'true');
                    }


                    var node = $img;
                    var isP = this.utils.isCurrentOrParent('P');
                    if (isP)
                    {
                        // will replace
                        node = $('<blockquote />').append($img);
                    }

                    if (direct)
                    {
                        this.selection.removeMarkers();
                        var marker = this.selection.getMarker();
                        this.insert.nodeToCaretPositionFromPoint(e, marker);
                    }
                    else
                    {
                        this.modal.close();
                    }

                    this.selection.restore();
                    this.buffer.set();

                    this.insert.html(this.utils.getOuterHtml(node), false);

                    var $image = this.$editor.find('img[data-redactor-inserted-image=true]').removeAttr('data-redactor-inserted-image');

                    if (isP)
                    {
                        $image.parent().contents().unwrap().wrap('<p />');
                    }
                    else if (this.opts.linebreaks)
                    {
                        $image.before('<br>').after('<br>');
                    }

                    if (typeof json == 'string') return;

                    this.core.setCallback('imageUpload', $image, json);

                }
            };
        },
        indent: function()
        {
            return {
                increase: function()
                {
                    // focus
                    if (!this.utils.browser('msie')) this.$editor.focus();

                    this.buffer.set();
                    this.selection.save();

                    var block = this.selection.getBlock();

                    if (block && block.tagName == 'LI')
                    {
                        this.indent.increaseLists();
                    }
                    else if (block === false && this.opts.linebreaks)
                    {
                        this.indent.increaseText();
                    }
                    else
                    {
                        this.indent.increaseBlocks();
                    }

                    this.selection.restore();
                    this.code.sync();
                },
                increaseLists: function()
                {
                    document.execCommand('indent');

                    this.indent.fixEmptyIndent();
                    this.clean.normalizeLists();
                    this.clean.clearUnverified();
                },
                increaseBlocks: function()
                {
                    $.each(this.selection.getBlocks(), $.proxy(function(i, elem)
                    {
                        if (elem.tagName === 'TD' || elem.tagName === 'TH') return;

                        var $el = this.utils.getAlignmentElement(elem);

                        var left = this.utils.normalize($el.css('margin-left')) + this.opts.indentValue;
                        $el.css('margin-left', left + 'px');

                    }, this));
                },
                increaseText: function()
                {
                    var wrapper = this.selection.wrap('div');
                    $(wrapper).attr('data-tagblock', 'redactor');
                    $(wrapper).css('margin-left', this.opts.indentValue + 'px');
                },
                decrease: function()
                {
                    this.buffer.set();
                    this.selection.save();

                    var block = this.selection.getBlock();
                    if (block && block.tagName == 'LI')
                    {
                        this.indent.decreaseLists();
                    }
                    else
                    {
                        this.indent.decreaseBlocks();
                    }

                    this.selection.restore();
                    this.code.sync();
                },
                decreaseLists: function ()
                {
                    document.execCommand('outdent');

                    var current = this.selection.getCurrent();

                    var $item = $(current).closest('li', this.$editor[0]);
                    var $parent = $item.parent();
                    if ($item.length !== 0 && $parent.length !== 0 && $parent[0].tagName == 'LI')
                    {
                        $parent.after($item);
                    }

                    this.indent.fixEmptyIndent();

                    if (!this.opts.linebreaks && $item.length === 0)
                    {
                        document.execCommand('formatblock', false, 'p');
                        this.$editor.find('ul, ol, blockquote, p').each($.proxy(this.utils.removeEmpty, this));
                    }

                    this.clean.clearUnverified();
                },
                decreaseBlocks: function()
                {
                    $.each(this.selection.getBlocks(), $.proxy(function(i, elem)
                    {
                        var $el = this.utils.getAlignmentElement(elem);
                        var left = this.utils.normalize($el.css('margin-left')) - this.opts.indentValue;

                        if (left <= 0)
                        {
                            if (this.opts.linebreaks && typeof($el.data('tagblock')) !== 'undefined')
                            {
                                $el.replaceWith($el.html() + '<br />');
                            }
                            else
                            {
                                $el.css('margin-left', '');
                                this.utils.removeEmptyAttr($el, 'style');
                            }
                        }
                        else
                        {
                            $el.css('margin-left', left + 'px');
                        }

                    }, this));
                },
                fixEmptyIndent: function()
                {
                    var block = this.selection.getBlock();

                    if (this.range.collapsed && block && block.tagName == 'LI' && this.utils.isEmpty($(block).text()))
                    {
                        var $block = $(block);
                        $block.find('span').not('.redactor-selection-marker').contents().unwrap();
                        $block.append('<br>');
                    }
                }
            };
        },
        inline: function()
        {
            return {
                formatting: function(name)
                {
                    var type, value;

                    if (typeof this.formatting[name].style != 'undefined') type = 'style';
                    else if (typeof this.formatting[name]['class'] != 'undefined') type = 'class';

                    if (type) value = this.formatting[name][type];

                    this.inline.format(this.formatting[name].tag, type, value);

                },
                format: function(tag, type, value)
                {
                    // Stop formatting pre and headers
                    if (this.utils.isCurrentOrParent('PRE') || this.utils.isCurrentOrParentHeader()) return;

                    var tags = ['b', 'bold', 'i', 'italic', 'underline', 'strikethrough', 'deleted', 'superscript', 'subscript'];
                    var replaced = ['strong', 'strong', 'em', 'em', 'u', 'del', 'del', 'sup', 'sub'];

                    for (var i = 0; i < tags.length; i++)
                    {
                        if (tag == tags[i]) tag = replaced[i];
                    }

                    if (this.opts.allowedTags)
                    {
                        if ($.inArray(tag, this.opts.allowedTags) == -1) return;
                    }
                    else
                    {
                        if ($.inArray(tag, this.opts.deniedTags) !== -1) return;
                    }

                    this.inline.type = type || false;
                    this.inline.value = value || false;

                    this.buffer.set();

                    if (!this.utils.browser('msie'))
                    {
                        this.$editor.focus();
                    }

                    this.selection.get();

                    if (this.range.collapsed)
                    {
                        this.inline.formatCollapsed(tag);
                    }
                    else
                    {
                        this.inline.formatMultiple(tag);
                    }
                },
                formatCollapsed: function(tag)
                {
                    var current = this.selection.getCurrent();
                    var $parent = $(current).closest(tag + '[data-redactor-tag=' + tag + ']', this.$editor[0]);

                    // inline there is
                    if ($parent.length !== 0 && (this.inline.type != 'style' && $parent[0].tagName != 'SPAN'))
                    {
                        // remove empty
                        if (this.utils.isEmpty($parent.text()))
                        {
                            this.caret.setAfter($parent[0]);

                            $parent.remove();
                            this.code.sync();
                        }
                        else if (this.utils.isEndOfElement($parent))
                        {
                            this.caret.setAfter($parent[0]);
                        }

                        return;
                    }

                    // create empty inline
                    var node = $('<' + tag + '>').attr('data-verified', 'redactor').attr('data-redactor-tag', tag);
                    node.html(this.opts.invisibleSpace);

                    node = this.inline.setFormat(node);

                    var node = this.insert.node(node);
                    this.caret.setEnd(node);

                    this.code.sync();
                },
                formatMultiple: function(tag)
                {
                    this.inline.formatConvert(tag);

                    this.selection.save();
                    document.execCommand('strikethrough');

                    this.$editor.find('strike').each($.proxy(function(i,s)
                    {
                        var $el = $(s);

                        this.inline.formatRemoveSameChildren($el, tag);

                        var $span;
                        if (this.inline.type)
                        {
                            $span = $('<span>').attr('data-redactor-tag', tag).attr('data-verified', 'redactor');
                            $span = this.inline.setFormat($span);
                        }
                        else
                        {
                            $span = $('<' + tag + '>').attr('data-redactor-tag', tag).attr('data-verified', 'redactor');
                        }

                        $el.replaceWith($span.html($el.contents()));

                        if (tag == 'span')
                        {
                            var $parent = $span.parent();
                            if ($parent && $parent[0].tagName == 'SPAN' && this.inline.type == 'style')
                            {
                                var arr = this.inline.value.split(';');

                                for (var z = 0; z < arr.length; z++)
                                {
                                    if (arr[z] === '') return;
                                    var style = arr[z].split(':');
                                    $parent.css(style[0], '');

                                    if (this.utils.removeEmptyAttr($parent, 'style'))
                                    {
                                        $parent.replaceWith($parent.contents());
                                    }

                                }

                            }
                        }

                    }, this));

                    // clear text decoration
                    if (tag != 'span')
                    {
                        this.$editor.find(this.opts.inlineTags.join(', ')).each($.proxy(function(i,s)
                        {
                            var $el = $(s);
                            var property = $el.css('text-decoration');
                            if (property == 'line-through')
                            {
                                $el.css('text-decoration', '');
                                this.utils.removeEmptyAttr($el, 'style');
                            }
                        }, this));
                    }

                    if (tag != 'del')
                    {
                        var _this = this;
                        this.$editor.find('inline').each(function(i,s)
                        {
                            _this.utils.replaceToTag(s, 'del');
                        });
                    }

                    this.selection.restore();
                    this.code.sync();

                },
                formatRemoveSameChildren: function($el, tag)
                {
                    var self = this;
                    $el.children(tag).each(function()
                    {
                        var $child = $(this);

                        if (!$child.hasClass('redactor-selection-marker'))
                        {
                            if (self.inline.type == 'style')
                            {
                                var arr = self.inline.value.split(';');

                                for (var z = 0; z < arr.length; z++)
                                {
                                    if (arr[z] === '') return;

                                    var style = arr[z].split(':');
                                    $child.css(style[0], '');

                                    if (self.utils.removeEmptyAttr($child , 'style'))
                                    {
                                        $child.replaceWith($child.contents());
                                    }

                                }
                            }
                            else
                            {
                                $child.contents().unwrap();
                            }
                        }

                    });
                },
                formatConvert: function(tag)
                {
                    this.selection.save();

                    var find = '';
                    if (this.inline.type == 'class') find = '[data-redactor-class=' + this.inline.value + ']';
                    else if (this.inline.type == 'style')
                    {
                        find = '[data-redactor-style="' + this.inline.value + '"]';
                    }

                    var self = this;
                    if (tag != 'del')
                    {
                        this.$editor.find('del').each(function(i,s)
                        {
                            self.utils.replaceToTag(s, 'inline');
                        });
                    }

                    if (tag != 'span')
                    {
                        this.$editor.find(tag).each(function()
                        {
                            var $el = $(this);
                            $el.replaceWith($('<strike />').html($el.contents()));

                        });
                    }

                    this.$editor.find('[data-redactor-tag="' + tag + '"]' + find).each(function()
                    {
                        if (find === '' && tag == 'span' && this.tagName.toLowerCase() == tag) return;

                        var $el = $(this);
                        $el.replaceWith($('<strike />').html($el.contents()));

                    });

                    this.selection.restore();
                },
                setFormat: function(node)
                {
                    switch (this.inline.type)
                    {
                        case 'class':

                            if (node.hasClass(this.inline.value))
                            {
                                node.removeClass(this.inline.value);
                                node.removeAttr('data-redactor-class');
                            }
                            else
                            {
                                node.addClass(this.inline.value);
                                node.attr('data-redactor-class', this.inline.value);
                            }


                        break;
                        case 'style':

                            node[0].style.cssText = this.inline.value;
                            node.attr('data-redactor-style', this.inline.value);

                        break;
                    }

                    return node;
                },
                removeStyle: function()
                {
                    this.buffer.set();
                    var current = this.selection.getCurrent();
                    var nodes = this.selection.getInlines();

                    this.selection.save();

                    if (current && current.tagName === 'SPAN')
                    {
                        var $s = $(current);

                        $s.removeAttr('style');
                        if ($s[0].attributes.length === 0)
                        {
                            $s.replaceWith($s.contents());
                        }
                    }

                    $.each(nodes, $.proxy(function(i,s)
                    {
                        var $s = $(s);
                        if ($.inArray(s.tagName.toLowerCase(), this.opts.inlineTags) != -1 && !$s.hasClass('redactor-selection-marker'))
                        {
                            $s.removeAttr('style');
                            if ($s[0].attributes.length === 0)
                            {
                                $s.replaceWith($s.contents());
                            }
                        }
                    }, this));

                    this.selection.restore();
                    this.code.sync();

                },
                removeStyleRule: function(name)
                {
                    this.buffer.set();
                    var parent = this.selection.getParent();
                    var nodes = this.selection.getInlines();

                    this.selection.save();

                    if (parent && parent.tagName === 'SPAN')
                    {
                        var $s = $(parent);

                        $s.css(name, '');
                        this.utils.removeEmptyAttr($s, 'style');
                        if ($s[0].attributes.length === 0)
                        {
                            $s.replaceWith($s.contents());
                        }
                    }

                    $.each(nodes, $.proxy(function(i,s)
                    {
                        var $s = $(s);
                        if ($.inArray(s.tagName.toLowerCase(), this.opts.inlineTags) != -1 && !$s.hasClass('redactor-selection-marker'))
                        {
                            $s.css(name, '');
                            this.utils.removeEmptyAttr($s, 'style');
                            if ($s[0].attributes.length === 0)
                            {
                                $s.replaceWith($s.contents());
                            }
                        }
                    }, this));

                    this.selection.restore();
                    this.code.sync();
                },
                removeFormat: function()
                {
                    this.buffer.set();
                    var current = this.selection.getCurrent();

                    this.selection.save();

                    document.execCommand('removeFormat');

                    if (current && current.tagName === 'SPAN')
                    {
                        $(current).replaceWith($(current).contents());
                    }


                    $.each(this.selection.getNodes(), $.proxy(function(i,s)
                    {
                        var $s = $(s);
                        if ($.inArray(s.tagName.toLowerCase(), this.opts.inlineTags) != -1 && !$s.hasClass('redactor-selection-marker'))
                        {
                            $s.replaceWith($s.contents());
                        }
                    }, this));

                    this.selection.restore();
                    this.code.sync();

                },
                toggleClass: function(className)
                {
                    this.inline.format('span', 'class', className);
                },
                toggleStyle: function(value)
                {
                    this.inline.format('span', 'style', value);
                }
            };
        },
        insert: function()
        {
            return {
                set: function(html, clean)
                {
                    this.placeholder.remove();

                    html = this.clean.setVerified(html);

                    if (typeof clean == 'undefined')
                    {
                        html = this.clean.onPaste(html, false);
                    }

                    this.$editor.html(html);
                    this.selection.remove();
                    this.focus.setEnd();
                    this.clean.normalizeLists();
                    this.code.sync();
                    this.observe.load();

                    if (typeof clean == 'undefined')
                    {
                        setTimeout($.proxy(this.clean.clearUnverified, this), 10);
                    }
                },
                text: function(text)
                {
                    this.placeholder.remove();

                    text = text.toString();
                    text = $.trim(text);
                    text = this.clean.getPlainText(text, false);

                    this.$editor.focus();

                    if (this.utils.browser('msie'))
                    {
                        this.insert.htmlIe(text);
                    }
                    else
                    {
                        this.selection.get();

                        this.range.deleteContents();
                        var el = document.createElement("div");
                        el.innerHTML = text;
                        var frag = document.createDocumentFragment(), node, lastNode;
                        while ((node = el.firstChild))
                        {
                            lastNode = frag.appendChild(node);
                        }

                        this.range.insertNode(frag);

                        if (lastNode)
                        {
                            var range = this.range.cloneRange();
                            range.setStartAfter(lastNode);
                            range.collapse(true);
                            this.sel.removeAllRanges();
                            this.sel.addRange(range);
                        }
                    }

                    this.code.sync();
                    this.clean.clearUnverified();
                },
                htmlWithoutClean: function(html)
                {
                    this.insert.html(html, false);
                },
                html: function(html, clean)
                {
                    this.placeholder.remove();

                    if (typeof clean == 'undefined') clean = true;

                    this.$editor.focus();

                    html = this.clean.setVerified(html);

                    if (clean)
                    {
                        html = this.clean.onPaste(html);
                    }

                    if (this.utils.browser('msie'))
                    {
                        this.insert.htmlIe(html);
                    }
                    else
                    {
                        if (this.clean.singleLine) this.insert.execHtml(html);
                        else document.execCommand('insertHTML', false, html);

                        this.insert.htmlFixMozilla();

                    }

                    this.clean.normalizeLists();

                    // remove empty paragraphs finaly
                    if (!this.opts.linebreaks)
                    {
                        this.$editor.find('p').each($.proxy(this.utils.removeEmpty, this));
                    }

                    this.code.sync();
                    this.observe.load();

                    if (clean)
                    {
                        this.clean.clearUnverified();
                    }

                },
                htmlFixMozilla: function()
                {
                    // FF inserts empty p when content was selected dblclick
                    if (!this.utils.browser('mozilla')) return;

                    var $next = $(this.selection.getBlock()).next();
                    if ($next.length > 0 && $next[0].tagName == 'P' && $next.html() === '')
                    {
                        $next.remove();
                    }

                },
                htmlIe: function(html)
                {
                    if (this.utils.isIe11())
                    {
                        var parent = this.utils.isCurrentOrParent('P');
                        var $html = $('<div>').append(html);
                        var blocksMatch = $html.contents().is('p, :header, dl, ul, ol, div, table, td, blockquote, pre, address, section, header, footer, aside, article');

                        if (parent && blocksMatch) this.insert.ie11FixInserting(parent, html);
                        else this.insert.ie11PasteFrag(html);

                        return;
                    }

                    document.selection.createRange().pasteHTML(html);

                },
                execHtml: function(html)
                {
                    html = this.clean.setVerified(html);

                    this.selection.get();

                    this.range.deleteContents();

                    var el = document.createElement('div');
                    el.innerHTML = html;

                    var frag = document.createDocumentFragment(), node, lastNode;
                    while ((node = el.firstChild))
                    {
                        lastNode = frag.appendChild(node);
                    }

                    this.range.insertNode(frag);

                    this.range.collapse(true);
                    this.caret.setAfter(lastNode);

                },
                node: function(node, deleteContents)
                {
                    node = node[0] || node;

                    var html = this.utils.getOuterHtml(node);
                    html = this.clean.setVerified(html);

                    if (html.match(/</g) !== null)
                    {
                        node = $(html)[0];
                    }

                    this.selection.get();

                    if (deleteContents !== false)
                    {
                        this.range.deleteContents();
                    }

                    this.range.insertNode(node);
                    this.range.collapse(false);
                    this.selection.addRange();

                    return node;
                },
                nodeToPoint: function(node, x, y)
                {
                    node = node[0] || node;

                    this.selection.get();

                    var range;
                    if (document.caretPositionFromPoint)
                    {
                        var pos = document.caretPositionFromPoint(x, y);

                        this.range.setStart(pos.offsetNode, pos.offset);
                        this.range.collapse(true);
                        this.range.insertNode(node);
                    }
                    else if (document.caretRangeFromPoint)
                    {
                        range = document.caretRangeFromPoint(x, y);
                        range.insertNode(node);
                    }
                    else if (typeof document.body.createTextRange != "undefined")
                    {
                        range = document.body.createTextRange();
                        range.moveToPoint(x, y);
                        var endRange = range.duplicate();
                        endRange.moveToPoint(x, y);
                        range.setEndPoint("EndToEnd", endRange);
                        range.select();
                    }
                },
                nodeToCaretPositionFromPoint: function(e, node)
                {
                    node = node[0] || node;

                    var range;
                    var x = e.clientX, y = e.clientY;
                    if (document.caretPositionFromPoint)
                    {
                        var pos = document.caretPositionFromPoint(x, y);
                        var sel = document.getSelection();
                        range = sel.getRangeAt(0);
                        range.setStart(pos.offsetNode, pos.offset);
                        range.collapse(true);
                        range.insertNode(node);
                    }
                    else if (document.caretRangeFromPoint)
                    {
                        range = document.caretRangeFromPoint(x, y);
                        range.insertNode(node);
                    }
                    else if (typeof document.body.createTextRange != "undefined")
                    {
                        range = document.body.createTextRange();
                        range.moveToPoint(x, y);
                        var endRange = range.duplicate();
                        endRange.moveToPoint(x, y);
                        range.setEndPoint("EndToEnd", endRange);
                        range.select();
                    }

                },
                ie11FixInserting: function(parent, html)
                {
                    var node = document.createElement('span');
                    node.className = 'redactor-ie-paste';
                    this.insert.node(node);

                    var parHtml = $(parent).html();

                    parHtml = '<p>' + parHtml.replace(/<span class="redactor-ie-paste"><\/span>/gi, '</p>' + html + '<p>') + '</p>';
                    $(parent).replaceWith(parHtml);
                },
                ie11PasteFrag: function(html)
                {
                    this.selection.get();
                    this.range.deleteContents();

                    var el = document.createElement("div");
                    el.innerHTML = html;

                    var frag = document.createDocumentFragment(), node, lastNode;
                    while ((node = el.firstChild))
                    {
                        lastNode = frag.appendChild(node);
                    }

                    this.range.insertNode(frag);
                    this.range.collapse(false);
                    this.selection.addRange();
                }
            };
        },
        keydown: function()
        {
            return {
                init: function(e)
                {
                    if (this.rtePaste) return;

                    var key = e.which;
                    var arrow = (key >= 37 && key <= 40);

                    this.keydown.ctrl = e.ctrlKey || e.metaKey;
                    this.keydown.current = this.selection.getCurrent();
                    this.keydown.parent = this.selection.getParent();
                    this.keydown.block = this.selection.getBlock();

                    // detect tags
                    this.keydown.pre = this.utils.isTag(this.keydown.current, 'pre');
                    this.keydown.blockquote = this.utils.isTag(this.keydown.current, 'blockquote');
                    this.keydown.figcaption = this.utils.isTag(this.keydown.current, 'figcaption');

                    // shortcuts setup
                    this.shortcuts.init(e, key);

                    this.keydown.checkEvents(arrow, key);
                    this.keydown.setupBuffer(e, key);
                    this.keydown.addArrowsEvent(arrow);
                    this.keydown.setupSelectAll(e, key);

                    // callback
                    var keydownStop = this.core.setCallback('keydown', e);
                    if (keydownStop === false)
                    {
                        e.preventDefault();
                        return false;
                    }

                    // ie and ff exit from table
                    if (this.opts.enterKey && (this.utils.browser('msie') || this.utils.browser('mozilla')) && (key === this.keyCode.DOWN || key === this.keyCode.RIGHT))
                    {
                        var isEndOfTable = false;
                        var $table = false;
                        if (this.keydown.block && this.keydown.block.tagName === 'TD')
                        {
                            $table = $(this.keydown.block).closest('table', this.$editor[0]);
                        }

                        if ($table && $table.find('td').last()[0] === this.keydown.block)
                        {
                            isEndOfTable = true;
                        }

                        if (this.utils.isEndOfElement() && isEndOfTable)
                        {
                            var node = $(this.opts.emptyHtml);
                            $table.after(node);
                            this.caret.setStart(node);
                        }
                    }

                    // down
                    if (this.opts.enterKey && key === this.keyCode.DOWN)
                    {
                        this.keydown.onArrowDown();
                    }

                    // turn off enter key
                    if (!this.opts.enterKey && key === this.keyCode.ENTER)
                    {
                        e.preventDefault();
                        // remove selected
                        if (!this.range.collapsed) this.range.deleteContents();
                        return;
                    }

                    // on enter
                    if (key == this.keyCode.ENTER && !e.shiftKey && !e.ctrlKey && !e.metaKey)
                    {
                        var stop = this.core.setCallback('enter', e);
                        if (stop === false)
                        {
                            e.preventDefault();
                            return false;
                        }

                        if (this.keydown.blockquote && this.keydown.exitFromBlockquote(e) === true)
                        {
                            return false;
                        }

                        var current, $next;
                        if (this.keydown.pre)
                        {
                            return this.keydown.insertNewLine(e);
                        }
                        else if (this.keydown.blockquote || this.keydown.figcaption)
                        {
                            current = this.selection.getCurrent();
                            $next = $(current).next();

                            if ($next.length !== 0 && $next[0].tagName == 'BR')
                            {
                                return this.keydown.insertBreakLine(e);
                            }
                            else if (this.utils.isEndOfElement() && (current && current != 'SPAN'))
                            {
                                return this.keydown.insertDblBreakLine(e);
                            }
                            else
                            {
                                return this.keydown.insertBreakLine(e);
                            }
                        }
                        else if (this.opts.linebreaks && !this.keydown.block)
                        {
                            current = this.selection.getCurrent();
                            $next = $(this.keydown.current).next();

                            if ($next.length !== 0 && $next[0].tagName == 'BR')
                            {
                                return this.keydown.insertBreakLine(e);
                            }
                            else if (current !== false && $(current).hasClass('redactor-invisible-space'))
                            {
                                this.caret.setAfter(current);
                                $(current).contents().unwrap();

                                return this.keydown.insertDblBreakLine(e);
                            }
                            else
                            {
                                if (this.utils.isEndOfEditor())
                                {
                                    return this.keydown.insertDblBreakLine(e);
                                }
                                else if ($next.length === 0 && current === false && typeof $next.context != 'undefined')
                                {
                                    return this.keydown.insertBreakLine(e);
                                }

                                return this.keydown.insertBreakLine(e);
                            }
                        }
                        else if (this.opts.linebreaks && this.keydown.block)
                        {
                            setTimeout($.proxy(this.keydown.replaceDivToBreakLine, this), 1);
                        }
                        // paragraphs
                        else if (!this.opts.linebreaks && this.keydown.block)
                        {
                            if (this.keydown.block.tagName !== 'LI')
                            {
                                setTimeout($.proxy(this.keydown.replaceDivToParagraph, this), 1);
                            }
                            else
                            {
                                current = this.selection.getCurrent();
                                var $parent = $(current).closest('li', this.$editor[0]);
                                var $list = $parent.closest('ul,ol', this.$editor[0]);

                                if ($parent.length !== 0 && this.utils.isEmpty($parent.html()) && $list.next().length === 0 && this.utils.isEmpty($list.find("li").last().html()))
                                {
                                    $list.find("li").last().remove();

                                    var node = $(this.opts.emptyHtml);
                                    $list.after(node);
                                    this.caret.setStart(node);

                                    return false;
                                }
                            }
                        }
                        else if (!this.opts.linebreaks && !this.keydown.block)
                        {
                            return this.keydown.insertParagraph(e);
                        }
                    }

                    // Shift+Enter or Ctrl+Enter
                    if (key === this.keyCode.ENTER && (e.ctrlKey || e.shiftKey))
                    {
                        return this.keydown.onShiftEnter(e);
                    }


                    // tab or cmd + [
                    if (key === this.keyCode.TAB || e.metaKey && key === 221 || e.metaKey && key === 219)
                    {
                        return this.keydown.onTab(e, key);
                    }

                    // image delete and backspace
                    if (key === this.keyCode.BACKSPACE || key === this.keyCode.DELETE)
                    {
                        if (this.utils.browser('mozilla') && this.keydown.current && this.keydown.current.tagName === 'TD')
                        {
                            e.preventDefault();
                            return false;
                        }

                        var nodes = this.selection.getNodes();
                        if (nodes)
                        {
                            var len = nodes.length;
                            var last;
                            for (var i = 0; i < len; i++)
                            {
                                var children = $(nodes[i]).children('img');
                                if (children.length !== 0)
                                {
                                    var self = this;
                                    $.each(children, function(z,s)
                                    {
                                        var $s = $(s);
                                        if ($s.css('float') != 'none') return;

                                        // image delete callback
                                        self.core.setCallback('imageDelete', s.src, $s);
                                        last = s;
                                    });
                                }
                                else if (nodes[i].tagName == 'IMG')
                                {
                                    if (last != nodes[i])
                                    {
                                        // image delete callback
                                        this.core.setCallback('imageDelete', nodes[i].src, $(nodes[i]));
                                        last = nodes[i];
                                    }
                                }
                            }
                        }
                    }

                    // backspace
                    if (key === this.keyCode.BACKSPACE)
                    {
                        this.keydown.removeInvisibleSpace();
                        this.keydown.removeEmptyListInTable(e);
                    }

                    this.code.sync();
                },
                checkEvents: function(arrow, key)
                {
                    if (!arrow && (this.core.getEvent() == 'click' || this.core.getEvent() == 'arrow'))
                    {
                        this.core.addEvent(false);

                        if (this.keydown.checkKeyEvents(key))
                        {
                            this.buffer.set();
                        }
                    }
                },
                checkKeyEvents: function(key)
                {
                    var k = this.keyCode;
                    var keys = [k.BACKSPACE, k.DELETE, k.ENTER, k.SPACE, k.ESC, k.TAB, k.CTRL, k.META, k.ALT, k.SHIFT];

                    return ($.inArray(key, keys) == -1) ? true : false;

                },
                addArrowsEvent: function(arrow)
                {
                    if (!arrow) return;

                    if ((this.core.getEvent() == 'click' || this.core.getEvent() == 'arrow'))
                    {
                        this.core.addEvent(false);
                        return;
                    }

                    this.core.addEvent('arrow');
                },
                setupBuffer: function(e, key)
                {
                    if (this.keydown.ctrl && key === 90 && !e.shiftKey && !e.altKey && this.opts.buffer.length) // z key
                    {
                        e.preventDefault();
                        this.buffer.undo();
                        return;
                    }
                    // undo
                    else if (this.keydown.ctrl && key === 90 && e.shiftKey && !e.altKey && this.opts.rebuffer.length !== 0)
                    {
                        e.preventDefault();
                        this.buffer.redo();
                        return;
                    }
                    else if (!this.keydown.ctrl)
                    {
                        if (key == this.keyCode.BACKSPACE || key == this.keyCode.DELETE || (key == this.keyCode.ENTER && !e.ctrlKey && !e.shiftKey) || key == this.keyCode.SPACE)
                        {
                            this.buffer.set();
                        }
                    }
                },
                setupSelectAll: function(e, key)
                {
                    if (this.keydown.ctrl && key === 65)
                    {
                        this.utils.enableSelectAll();
                    }
                    else if (key != this.keyCode.LEFT_WIN && !this.keydown.ctrl)
                    {
                        this.utils.disableSelectAll();
                    }
                },
                onArrowDown: function()
                {
                    var tags = [this.keydown.blockquote, this.keydown.pre, this.keydown.figcaption];

                    for (var i = 0; i < tags.length; i++)
                    {
                        if (tags[i])
                        {
                            this.keydown.insertAfterLastElement(tags[i]);
                            return false;
                        }
                    }
                },
                onShiftEnter: function(e)
                {
                    this.buffer.set();

                    if (this.utils.isEndOfElement())
                    {
                        return this.keydown.insertDblBreakLine(e);
                    }

                    return this.keydown.insertBreakLine(e);
                },
                onTab: function(e, key)
                {
                    if (!this.opts.tabKey) return true;
                    if (this.utils.isEmpty(this.code.get()) && this.opts.tabAsSpaces === false) return true;

                    e.preventDefault();

                    var node;
                    if (this.keydown.pre && !e.shiftKey)
                    {
                        node = (this.opts.preSpaces) ? document.createTextNode(Array(this.opts.preSpaces + 1).join('\u00a0')) : document.createTextNode('\t');
                        this.insert.node(node);
                        this.code.sync();
                    }
                    else if (this.opts.tabAsSpaces !== false)
                    {
                        node = document.createTextNode(Array(this.opts.tabAsSpaces + 1).join('\u00a0'));
                        this.insert.node(node);
                        this.code.sync();
                    }
                    else
                    {
                        if (e.metaKey && key === 219) this.indent.decrease();
                        else if (e.metaKey && key === 221) this.indent.increase();
                        else if (!e.shiftKey) this.indent.increase();
                        else this.indent.decrease();
                    }

                    return false;
                },
                replaceDivToBreakLine: function()
                {
                    var blockElem = this.selection.getBlock();
                    var blockHtml = blockElem.innerHTML.replace(/<br\s?\/?>/gi, '');
                    if ((blockElem.tagName === 'DIV' || blockElem.tagName === 'P') && blockHtml === '' && !$(blockElem).hasClass('redactor-editor'))
                    {
                        var br = document.createElement('br');

                        $(blockElem).replaceWith(br);
                        this.caret.setBefore(br);

                        this.code.sync();

                        return false;
                    }
                },
                replaceDivToParagraph: function()
                {
                    var blockElem = this.selection.getBlock();
                    var blockHtml = blockElem.innerHTML.replace(/<br\s?\/?>/gi, '');
                    if (blockElem.tagName === 'DIV' && blockHtml === '' && !$(blockElem).hasClass('redactor-editor'))
                    {
                        var p = document.createElement('p');
                        p.innerHTML = this.opts.invisibleSpace;

                        $(blockElem).replaceWith(p);
                        this.caret.setStart(p);

                        this.code.sync();

                        return false;
                    }
                    else if (this.opts.cleanStyleOnEnter && blockElem.tagName == 'P')
                    {
                        $(blockElem).removeAttr('class').removeAttr('style');
                    }
                },
                insertParagraph: function(e)
                {
                    e.preventDefault();

                    this.selection.get();

                    var p = document.createElement('p');
                    p.innerHTML = this.opts.invisibleSpace;

                    this.range.deleteContents();
                    this.range.insertNode(p);

                    this.caret.setStart(p);

                    this.code.sync();

                    return false;
                },
                exitFromBlockquote: function(e)
                {
                    if (!this.utils.isEndOfElement()) return;

                    var tmp = $.trim($(this.keydown.block).html());
                    if (tmp.search(/(<br\s?\/?>){2}$/i) != -1)
                    {
                        e.preventDefault();

                        if (this.opts.linebreaks)
                        {
                            var br = document.createElement('br');
                            $(this.keydown.blockquote).after(br);

                            this.caret.setBefore(br);
                            $(this.keydown.block).html(tmp.replace(/<br\s?\/?>$/i, ''));
                        }
                        else
                        {
                            var node = $(this.opts.emptyHtml);
                            $(this.keydown.blockquote).after(node);
                            this.caret.setStart(node);
                        }

                        return true;

                    }

                    return;

                },
                insertAfterLastElement: function(element)
                {
                    if (!this.utils.isEndOfElement()) return;

                    this.buffer.set();

                    if (this.opts.linebreaks)
                    {
                        var contents = $('<div>').append($.trim(this.$editor.html())).contents();
                        var last = contents.last()[0];
                        if (last.tagName == 'SPAN' && last.innerHTML === '')
                        {
                            last = contents.prev()[0];
                        }

                        if (this.utils.getOuterHtml(last) != this.utils.getOuterHtml(element)) return;

                        var br = document.createElement('br');
                        $(element).after(br);
                        this.caret.setAfter(br);

                    }
                    else
                    {
                        if (this.$editor.contents().last()[0] !== element) return;

                        var node = $(this.opts.emptyHtml);
                        $(element).after(node);
                        this.caret.setStart(node);
                    }
                },
                insertNewLine: function(e)
                {
                    e.preventDefault();

                    var node = document.createTextNode('\n');

                    this.selection.get();

                    this.range.deleteContents();
                    this.range.insertNode(node);

                    this.caret.setAfter(node);

                    this.code.sync();

                    return false;
                },
                insertBreakLine: function(e)
                {
                    return this.keydown.insertBreakLineProcessing(e);
                },
                insertDblBreakLine: function(e)
                {
                    return this.keydown.insertBreakLineProcessing(e, true);
                },
                insertBreakLineProcessing: function(e, dbl)
                {
                    e.stopPropagation();

                    this.selection.get();

                    var br1 = document.createElement('br');

                    if (this.utils.browser('msie'))
                    {
                        this.range.collapse(false);
                        this.range.setEnd(this.range.endContainer, this.range.endOffset);
                    }
                    else
                    {
                        this.range.deleteContents();
                    }

                    this.range.insertNode(br1);

                    // move br outside A tag
                    var $parentA = $(br1).parent("a");

                    if ($parentA.length > 0)
                    {
                        $parentA.find(br1)
                                .remove();

                        $parentA.after(br1);
                    }

                    if (dbl === true)
                    {
                        var $next = $(br1).next();
                        if ($next.length !== 0 && $next[0].tagName === 'BR' && this.utils.isEndOfEditor())
                        {
                            this.caret.setAfter(br1);
                            this.code.sync();
                            return false;
                        }

                        var br2 = document.createElement('br');

                        this.range.insertNode(br2);
                        this.caret.setAfter(br2);
                    }
                    else
                    {
                        this.keydown.insertBreakLineProcessingAfter(br1);
                    }

                    this.code.sync();
                    return false;
                },
                insertBreakLineProcessingAfter: function(node)
                {
                    var space = this.utils.createSpaceElement();
                    $(node).after(space);
                    this.selection.selectElement(space);

                    $(space).replaceWith(function()
                    {
                        return $(this).contents();
                    });
                },
                removeInvisibleSpace: function()
                {
                    var $current = $(this.keydown.current);
                    if ($current.text().search(/^\u200B$/g) === 0)
                    {
                        $current.remove();
                    }
                },
                removeEmptyListInTable: function(e)
                {
                    var $current = $(this.keydown.current);
                    var $parent = $(this.keydown.parent);
                    var td = $current.closest('td', this.$editor[0]);

                    if (td.length !== 0 && $current.closest('li', this.$editor[0]) && $parent.children('li').length === 1)
                    {
                        if (!this.utils.isEmpty($current.text())) return;

                        e.preventDefault();

                        $current.remove();
                        $parent.remove();

                        this.caret.setStart(td);
                    }
                }
            };
        },
        keyup: function()
        {
            return {
                init: function(e)
                {
                    if (this.rtePaste) return;

                    var key = e.which;

                    this.keyup.current = this.selection.getCurrent();
                    this.keyup.parent = this.selection.getParent();
                    var $parent = this.utils.isRedactorParent($(this.keyup.parent).parent());

                    // callback
                    var keyupStop = this.core.setCallback('keyup', e);
                    if (keyupStop === false)
                    {
                        e.preventDefault();
                        return false;
                    }

                    // replace to p before / after the table or body
                    if (!this.opts.linebreaks && this.keyup.current.nodeType == 3 && this.keyup.current.length <= 1 && (this.keyup.parent === false || this.keyup.parent.tagName == 'BODY'))
                    {
                        this.keyup.replaceToParagraph();
                    }

                    // replace div after lists
                    if (!this.opts.linebreaks && this.utils.isRedactorParent(this.keyup.current) && this.keyup.current.tagName === 'DIV')
                    {
                        this.keyup.replaceToParagraph(false);
                    }


                    if (!this.opts.linebreaks && $(this.keyup.parent).hasClass('redactor-invisible-space') && ($parent === false || $parent[0].tagName == 'BODY'))
                    {
                        $(this.keyup.parent).contents().unwrap();
                        this.keyup.replaceToParagraph();
                    }

                    // linkify
                    if (this.linkify.isEnabled() && this.linkify.isKey(key))
                        this.linkify.format();

                    if (key === this.keyCode.DELETE || key === this.keyCode.BACKSPACE)
                    {
                        // clear unverified
                        this.clean.clearUnverified();

                        if (this.observe.image)
                        {
                            e.preventDefault();

                            this.image.hideResize();

                            this.buffer.set();
                            this.image.remove(this.observe.image);
                            this.observe.image = false;

                            return false;
                        }

                        // remove empty paragraphs
                        this.$editor.find('p').each($.proxy(function(i, s)
                        {
                            this.utils.removeEmpty(i, $(s).html());
                        }, this));

                        // remove invisible space
                        if (this.opts.linebreaks && this.keyup.current && this.keyup.current.tagName == 'DIV' && this.utils.isEmpty(this.keyup.current.innerHTML))
                        {
                            $(this.keyup.current).after(this.selection.getMarkerAsHtml());
                            this.selection.restore();
                            $(this.keyup.current).remove();
                        }

                        // if empty
                        return this.keyup.formatEmpty(e);
                    }
                },
                replaceToParagraph: function(clone)
                {
                    var $current = $(this.keyup.current);

                    var node;
                    if (clone === false)
                    {
                        node = $('<p>').append($current.html());
                    }
                    else
                    {
                        node = $('<p>').append($current.clone());
                    }

                    $current.replaceWith(node);
                    var next = $(node).next();
                    if (typeof(next[0]) !== 'undefined' && next[0].tagName == 'BR')
                    {
                        next.remove();
                    }

                    this.caret.setEnd(node);
                },
                formatEmpty: function(e)
                {
                    var html = $.trim(this.$editor.html());

                    if (!this.utils.isEmpty(html)) return;

                    e.preventDefault();

                    if (this.opts.linebreaks)
                    {
                        this.$editor.html(this.selection.getMarkerAsHtml());
                        this.selection.restore();
                    }
                    else
                    {
                        html = '<p><br /></p>';

                        this.$editor.html(html);
                        this.focus.setStart();
                    }

                    this.code.sync();

                    return false;
                }
            };
        },
        lang: function()
        {
            return {
                load: function()
                {
                    this.opts.curLang = this.opts.langs[this.opts.lang];
                },
                get: function(name)
                {
                    return (typeof this.opts.curLang[name] != 'undefined') ? this.opts.curLang[name] : '';
                }
            };
        },
        line: function()
        {
            return {
                insert: function()
                {
                    this.buffer.set();

                    var blocks = this.selection.getBlocks();
                    if (blocks[0] !== false && this.line.isExceptLastOrFirst(blocks))
                    {
                        if (!this.utils.browser('msie')) this.$editor.focus();
                        return;
                    }

                    if (this.utils.browser('msie'))
                    {
                        this.line.insertInIe();
                    }
                    else
                    {
                        this.line.insertInOthersBrowsers();
                    }
                },
                isExceptLastOrFirst: function(blocks)
                {
                    var exceptTags = ['li', 'td', 'th', 'blockquote', 'figcaption', 'pre', 'dl', 'dt', 'dd'];

                    var first = blocks[0].tagName.toLowerCase();
                    var last = this.selection.getLastBlock();

                    last = (typeof last == 'undefined') ? first : last.tagName.toLowerCase();

                    var firstFound = $.inArray(first, exceptTags) != -1;
                    var lastFound = $.inArray(last, exceptTags) != -1;

                    if ((firstFound && lastFound) || firstFound)
                    {
                        return true;
                    }
                },
                insertInIe: function()
                {
                    this.utils.saveScroll();
                    this.buffer.set();

                    this.insert.node(document.createElement('hr'));

                    this.utils.restoreScroll();
                    this.code.sync();
                },
                insertInOthersBrowsers: function()
                {
                    this.buffer.set();

                    var extra = '<p id="redactor-insert-line"><br /></p>';
                    if (this.opts.linebreaks) extra = '<br id="redactor-insert-line">';

                    document.execCommand('insertHTML', false, '<hr>' + extra);

                    this.line.setFocus();
                    this.code.sync();
                },
                setFocus: function()
                {
                    var node = this.$editor.find('#redactor-insert-line');
                    var next = $(node).next()[0];

                    if (next)
                    {
                        this.caret.setAfter(node);
                        node.remove();
                    }
                    else
                    {
                        node.removeAttr('id');
                    }
                }
            };
        },
        link: function()
        {
            return {
                show: function(e)
                {
                    if (typeof e != 'undefined' && e.preventDefault) e.preventDefault();

                    this.modal.load('link', this.lang.get('link_insert'), 600);

                    this.modal.createCancelButton();
                    this.link.buttonInsert = this.modal.createActionButton(this.lang.get('insert'));

                    this.selection.get();

                    this.link.getData();
                    this.link.cleanUrl();

                    if (this.link.target == '_blank') $('#redactor-link-blank').prop('checked', true);

                    this.link.$inputUrl = $('#redactor-link-url');
                    this.link.$inputText = $('#redactor-link-url-text');

                    this.link.$inputText.val(this.link.text);
                    this.link.$inputUrl.val(this.link.url);

                    this.link.buttonInsert.on('click', $.proxy(this.link.insert, this));

                    // hide link's tooltip
                    $('.redactor-link-tooltip').remove();

                    // show modal
                    this.selection.save();
                    this.modal.show();
                    this.link.$inputUrl.focus();
                },
                cleanUrl: function()
                {
                    var thref = self.location.href.replace(/\/$/i, '');

                    if (typeof this.link.url !== "undefined")
                    {
                        this.link.url = this.link.url.replace(thref, '');
                        this.link.url = this.link.url.replace(/^\/#/, '#');
                        this.link.url = this.link.url.replace('mailto:', '');

                        // remove host from href
                        if (!this.opts.linkProtocol)
                        {
                            var re = new RegExp('^(http|ftp|https)://' + self.location.host, 'i');
                            this.link.url = this.link.url.replace(re, '');
                        }
                    }
                },
                getData: function()
                {
                    this.link.$node = false;

                    var $el = $(this.selection.getCurrent()).closest('a', this.$editor[0]);
                    if ($el.length !== 0 && $el[0].tagName === 'A')
                    {
                        this.link.$node = $el;

                        this.link.url = $el.attr('href');
                        this.link.text = $el.text();
                        this.link.target = $el.attr('target');
                    }
                    else
                    {
                        this.link.text = this.sel.toString();
                        this.link.url = '';
                        this.link.target = '';
                    }

                },
                insert: function()
                {
                    this.placeholder.remove();

                    var target = '';
                    var link = this.link.$inputUrl.val();
                    var text = this.link.$inputText.val();

                    if ($.trim(link) === '')
                    {
                        this.link.$inputUrl.addClass('redactor-input-error').on('keyup', function()
                        {
                            $(this).removeClass('redactor-input-error');
                            $(this).off('keyup');

                        });

                        return;
                    }

                    // mailto
                    if (link.search('@') != -1 && /(http|ftp|https):\/\//i.test(link) === false)
                    {
                        link = 'mailto:' + link;
                    }
                    // url, not anchor
                    else if (link.search('#') !== 0)
                    {
                        if ($('#redactor-link-blank').prop('checked'))
                        {
                            target = '_blank';
                        }

                        // test url (add protocol)
                        var pattern = '((xn--)?[a-z0-9]+(-[a-z0-9]+)*\\.)+[a-z]{2,}';
                        var re = new RegExp('^(http|ftp|https)://' + pattern, 'i');
                        var re2 = new RegExp('^' + pattern, 'i');
                        var re3 = new RegExp('\.(html|php)$', 'i');
                        if (link.search(re) == -1 && link.search(re3) == -1 && link.search(re2) === 0 && this.opts.linkProtocol)
                        {
                            link = this.opts.linkProtocol + '://' + link;
                        }
                    }

                    this.link.set(text, link, target);
                    this.modal.close();
                },
                set: function(text, link, target)
                {
                    text = $.trim(text.replace(/<|>/g, ''));

                    this.selection.restore();

                    if (text === '' && link === '') return;
                    if (text === '' && link !== '') text = link;

                    if (this.link.$node)
                    {
                        this.buffer.set();

                        var $link = this.link.$node,
                            $el   = $link.children();

                        if ($el.length > 0)
                        {
                            while ($el.length)
                            {
                                $el = $el.children();
                            }

                            $el = $el.end();
                        }
                        else
                        {
                            $el = $link;
                        }

                        $link.attr('href', link);
                        $el.text(text);

                        if (target !== '')
                        {
                            $link.attr('target', target);
                        }
                        else
                        {
                            $link.removeAttr('target');
                        }

                        this.selection.selectElement($link);

                        this.code.sync();
                    }
                    else
                    {
                        if (this.utils.browser('mozilla') && this.link.text === '')
                        {
                            var $a = $('<a />').attr('href', link).text(text);
                            if (target !== '') $a.attr('target', target);

                            this.insert.node($a);
                            this.selection.selectElement($a);
                        }
                        else
                        {
                            var $a;
                            if (this.utils.browser('msie'))
                            {
                                $a = $('<a href="' + link + '">').text(text);
                                if (target !== '') $a.attr('target', target);

                                $a = $(this.insert.node($a));

                                if (this.selection.getText().match(/\s$/))
                                {
                                    $a.after(" ");
                                }

                                this.selection.selectElement($a);
                            }
                            else
                            {
                                document.execCommand('createLink', false, link);

                                $a = $(this.selection.getCurrent()).closest('a', this.$editor[0]);
                                if (this.utils.browser('mozilla'))
                                {
                                    $a = $('a[_moz_dirty=""]');
                                }

                                if (target !== '') $a.attr('target', target);
                                $a.removeAttr('style').removeAttr('_moz_dirty');

                                if (this.selection.getText().match(/\s$/))
                                {
                                    $a.after(" ");
                                }

                                if (this.link.text !== '' || this.link.text != text)
                                {
                                    $a.text(text);

                                    this.selection.selectElement($a);
                                }
                            }
                        }

                        this.code.sync();
                        this.core.setCallback('insertedLink', $a);

                    }

                    // link tooltip
                    setTimeout($.proxy(function()
                    {
                        this.observe.links();

                    }, this), 5);
                },
                unlink: function(e)
                {
                    if (typeof e != 'undefined' && e.preventDefault)
                    {
                        e.preventDefault();
                    }

                    var nodes = this.selection.getNodes();
                    if (!nodes) return;

                    this.buffer.set();

                    var len = nodes.length;
                    for (var i = 0; i < len; i++)
                    {
                        var $node = $(nodes[i]).closest('a', this.$editor[0]);
                        $node.replaceWith($node.contents());
                    }

                    // hide link's tooltip
                    $('.redactor-link-tooltip').remove();

                    this.code.sync();

                },
                toggleClass: function(className)
                {
                    this.link.setClass(className, 'toggleClass');
                },
                addClass: function(className)
                {
                    this.link.setClass(className, 'addClass');
                },
                removeClass: function(className)
                {
                    this.link.setClass(className, 'removeClass');
                },
                setClass: function(className, func)
                {
                    var links = this.selection.getInlinesTags(['a']);
                    if (links === false) return;

                    $.each(links, function()
                    {
                        $(this)[func](className);
                    });
                }
            };
        },
        list: function()
        {
            return {
                toggle: function(cmd)
                {
                    this.placeholder.remove();
                    if (!this.utils.browser('msie')) this.$editor.focus();

                    this.buffer.set();
                    this.selection.save();

                    var parent = this.selection.getParent();
                    var $list = $(parent).closest('ol, ul', this.$editor[0]);

                    if (!this.utils.isRedactorParent($list) && $list.length !== 0)
                    {
                        $list = false;
                    }

                    var isUnorderedCmdOrdered, isOrderedCmdUnordered;
                    var remove = false;
                    if ($list && $list.length)
                    {
                        remove = true;
                        var listTag = $list[0].tagName;

                        isUnorderedCmdOrdered = (cmd === 'orderedlist' && listTag === 'UL');
                        isOrderedCmdUnordered = (cmd === 'unorderedlist' && listTag === 'OL');
                    }

                    if (isUnorderedCmdOrdered)
                    {
                        this.utils.replaceToTag($list, 'ol');
                    }
                    else if (isOrderedCmdUnordered)
                    {
                        this.utils.replaceToTag($list, 'ul');
                    }
                    else
                    {
                        if (remove)
                        {
                            this.list.remove(cmd);
                        }
                        else
                        {
                            this.list.insert(cmd);
                        }
                    }

                    this.selection.restore();
                    this.code.sync();
                },
                insert: function(cmd)
                {
                    var parent = this.selection.getParent();
                    var current = this.selection.getCurrent();
                    var $td = $(current).closest('td, th', this.$editor[0]);

                    if (this.utils.browser('msie') && this.opts.linebreaks)
                    {
                        this.list.insertInIe(cmd);
                    }
                    else
                    {
                        document.execCommand('insert' + cmd);
                    }

                    var $list = $(this.selection.getParent()).closest('ol, ul', this.$editor[0]);

                    if ($td.length !== 0)
                    {
                        var prev = $td.prev();
                        var html = $td.html();
                        $td.html('');
                        if (prev && prev.length === 1 && (prev[0].tagName === 'TD' || prev[0].tagName === 'TH'))
                        {
                            $(prev).after($td);
                        }
                        else
                        {
                            $(parent).prepend($td);
                        }

                        $td.html(html);
                    }

                    if (this.utils.isEmpty($list.find('li').text()))
                    {
                        var $children = $list.children('li');
                        $children.find('br').remove();
                        $children.append(this.selection.getMarkerAsHtml());
                    }

                    if ($list.length)
                    {
                        // remove block-element list wrapper
                        var $listParent = $list.parent();
                        if (this.utils.isRedactorParent($listParent) && $listParent[0].tagName != 'LI' && this.utils.isBlock($listParent[0]))
                        {
                            $listParent.replaceWith($listParent.contents());
                        }
                    }

                    if (!this.utils.browser('msie'))
                    {
                        this.$editor.focus();
                    }

                    this.clean.clearUnverified();
                },
                insertInIe: function(cmd)
                {
                    var wrapper = this.selection.wrap('div');
                    var wrapperHtml = $(wrapper).html();

                    var tmpList = (cmd == 'orderedlist') ? $('<ol>') : $('<ul>');
                    var tmpLi = $('<li>');

                    if ($.trim(wrapperHtml) === '')
                    {
                        tmpLi.append(this.selection.getMarkerAsHtml());
                        tmpList.append(tmpLi);
                        this.$editor.find('#selection-marker-1').replaceWith(tmpList);
                    }
                    else
                    {
                        var items = wrapperHtml.split(/<br\s?\/?>/gi);
                        if (items)
                        {
                            for (var i = 0; i < items.length; i++)
                            {
                                if ($.trim(items[i]) !== '')
                                {
                                    tmpList.append($('<li>').html(items[i]));
                                }
                            }
                        }
                        else
                        {
                            tmpLi.append(wrapperHtml);
                            tmpList.append(tmpLi);
                        }

                        $(wrapper).replaceWith(tmpList);
                    }
                },
                remove: function(cmd)
                {
                    document.execCommand('insert' + cmd);

                    var $current = $(this.selection.getCurrent());

                    this.indent.fixEmptyIndent();

                    if (!this.opts.linebreaks && $current.closest('li, th, td', this.$editor[0]).length === 0)
                    {
                        document.execCommand('formatblock', false, 'p');
                        this.$editor.find('ul, ol, blockquote').each($.proxy(this.utils.removeEmpty, this));
                    }

                    var $table = $(this.selection.getCurrent()).closest('table', this.$editor[0]);
                    var $prev = $table.prev();
                    if (!this.opts.linebreaks && $table.length !== 0 && $prev.length !== 0 && $prev[0].tagName == 'BR')
                    {
                        $prev.remove();
                    }

                    this.clean.clearUnverified();

                }
            };
        },
        modal: function()
        {
            return {
                callbacks: {},
                loadTemplates: function()
                {
                    this.opts.modal = {
                        imageEdit: String()
                        + '<section id="redactor-modal-image-edit">'
                            + '<label>' + this.lang.get('title') + '</label>'
                            + '<input type="text" id="redactor-image-title" />'
                            + '<label class="redactor-image-link-option">' + this.lang.get('link') + '</label>'
                            + '<input type="text" id="redactor-image-link" class="redactor-image-link-option" />'
                            + '<label class="redactor-image-link-option"><input type="checkbox" id="redactor-image-link-blank"> ' + this.lang.get('link_new_tab') + '</label>'
                            + '<label class="redactor-image-position-option">' + this.lang.get('image_position') + '</label>'
                            + '<select class="redactor-image-position-option" id="redactor-image-align">'
                                + '<option value="none">' + this.lang.get('none') + '</option>'
                                + '<option value="left">' + this.lang.get('left') + '</option>'
                                + '<option value="center">' + this.lang.get('center') + '</option>'
                                + '<option value="right">' + this.lang.get('right') + '</option>'
                            + '</select>'
                        + '</section>',

                        image: String()
                        + '<section id="redactor-modal-image-insert">'
                            + '<div id="redactor-modal-image-droparea"></div>'
                        + '</section>',

                        file: String()
                        + '<section id="redactor-modal-file-insert">'
                            + '<div id="redactor-modal-file-upload-box">'
                                + '<label>' + this.lang.get('filename') + '</label>'
                                + '<input type="text" id="redactor-filename" /><br><br>'
                                + '<div id="redactor-modal-file-upload"></div>'
                            + '</div>'
                        + '</section>',

                        link: String()
                        + '<section id="redactor-modal-link-insert">'
                            + '<label>URL</label>'
                            + '<input type="url" id="redactor-link-url" />'
                            + '<label>' + this.lang.get('text') + '</label>'
                            + '<input type="text" id="redactor-link-url-text" />'
                            + '<label><input type="checkbox" id="redactor-link-blank"> ' + this.lang.get('link_new_tab') + '</label>'
                        + '</section>'
                    };


                    $.extend(this.opts, this.opts.modal);

                },
                addCallback: function(name, callback)
                {
                    this.modal.callbacks[name] = callback;
                },
                createTabber: function($modal)
                {
                    this.modal.$tabber = $('<div>').attr('id', 'redactor-modal-tabber');

                    $modal.prepend(this.modal.$tabber);
                },
                addTab: function(id, name, active)
                {
                    var $tab = $('<a href="#" rel="tab' + id + '">').text(name);
                    if (active)
                    {
                        $tab.addClass('active');
                    }

                    var self = this;
                    $tab.on('click', function(e)
                    {
                        e.preventDefault();
                        $('.redactor-tab').hide();
                        $('.redactor-' + $(this).attr('rel')).show();

                        self.modal.$tabber.find('a').removeClass('active');
                        $(this).addClass('active');

                    });

                    this.modal.$tabber.append($tab);
                },
                addTemplate: function(name, template)
                {
                    this.opts.modal[name] = template;
                },
                getTemplate: function(name)
                {
                    return this.opts.modal[name];
                },
                getModal: function()
                {
                    return this.$modalBody.find('section');
                },
                load: function(templateName, title, width)
                {
                    this.modal.templateName = templateName;
                    this.modal.width = width;

                    this.modal.build();
                    this.modal.enableEvents();
                    this.modal.setTitle(title);
                    this.modal.setDraggable();
                    this.modal.setContent();

                    // callbacks
                    if (typeof this.modal.callbacks[templateName] != 'undefined')
                    {
                        this.modal.callbacks[templateName].call(this);
                    }

                },
                show: function()
                {
                    // ios keyboard hide
                    if (this.utils.isMobile() && !this.utils.browser('msie'))
                    {
                        document.activeElement.blur();
                    }

                    $(document.body).removeClass('body-redactor-hidden');
                    this.modal.bodyOveflow = $(document.body).css('overflow');
                    $(document.body).css('overflow', 'hidden');

                    if (this.utils.isMobile())
                    {
                        this.modal.showOnMobile();
                    }
                    else
                    {
                        this.modal.showOnDesktop();
                    }

                    this.$modalOverlay.show();
                    this.$modalBox.show();

                    this.modal.setButtonsWidth();

                    this.utils.saveScroll();

                    // resize
                    if (!this.utils.isMobile())
                    {
                        setTimeout($.proxy(this.modal.showOnDesktop, this), 0);
                        $(window).on('resize.redactor-modal', $.proxy(this.modal.resize, this));
                    }

                    // modal shown callback
                    this.core.setCallback('modalOpened', this.modal.templateName, this.$modal);

                    // fix bootstrap modal focus
                    $(document).off('focusin.modal');

                    // enter
                    this.$modal.find('input[type=text],input[type=url],input[type=email]').on('keydown.redactor-modal', $.proxy(this.modal.setEnter, this));
                },
                showOnDesktop: function()
                {
                    var height = this.$modal.outerHeight();
                    var windowHeight = $(window).height();
                    var windowWidth = $(window).width();

                    if (this.modal.width > windowWidth)
                    {
                        this.$modal.css({
                            width: '96%',
                            marginTop: (windowHeight/2 - height/2) + 'px'
                        });
                        return;
                    }

                    if (height > windowHeight)
                    {
                        this.$modal.css({
                            width: this.modal.width + 'px',
                            marginTop: '20px'
                        });
                    }
                    else
                    {
                        this.$modal.css({
                            width: this.modal.width + 'px',
                            marginTop: (windowHeight/2 - height/2) + 'px'
                        });
                    }
                },
                showOnMobile: function()
                {
                    this.$modal.css({
                        width: '96%',
                        marginTop: '2%'
                    });

                },
                resize: function()
                {
                    if (this.utils.isMobile())
                    {
                        this.modal.showOnMobile();
                    }
                    else
                    {
                        this.modal.showOnDesktop();
                    }
                },
                setTitle: function(title)
                {
                    this.$modalHeader.html(title);
                },
                setContent: function()
                {
                    this.$modalBody.html(this.modal.getTemplate(this.modal.templateName));
                },
                setDraggable: function()
                {
                    if (typeof $.fn.draggable === 'undefined') return;

                    this.$modal.draggable({ handle: this.$modalHeader });
                    this.$modalHeader.css('cursor', 'move');
                },
                setEnter: function(e)
                {
                    if (e.which != 13) return;

                    e.preventDefault();
                    this.$modal.find('button.redactor-modal-action-btn').click();
                },
                createCancelButton: function()
                {
                    var button = $('<button>').addClass('redactor-modal-btn redactor-modal-close-btn').html(this.lang.get('cancel'));
                    button.on('click', $.proxy(this.modal.close, this));

                    this.$modalFooter.append(button);
                },
                createDeleteButton: function(label)
                {
                    return this.modal.createButton(label, 'delete');
                },
                createActionButton: function(label)
                {
                    return this.modal.createButton(label, 'action');
                },
                createButton: function(label, className)
                {
                    var button = $('<button>').addClass('redactor-modal-btn').addClass('redactor-modal-' + className + '-btn').html(label);
                    this.$modalFooter.append(button);

                    return button;
                },
                setButtonsWidth: function()
                {
                    var buttons = this.$modalFooter.find('button');
                    var buttonsSize = buttons.length;
                    if (buttonsSize === 0) return;

                    buttons.css('width', (100/buttonsSize) + '%');
                },
                build: function()
                {
                    this.modal.buildOverlay();

                    this.$modalBox = $('<div id="redactor-modal-box" />').hide();
                    this.$modal = $('<div id="redactor-modal" />');
                    this.$modalHeader = $('<header />');
                    this.$modalClose = $('<span id="redactor-modal-close" />').html('&times;');
                    this.$modalBody = $('<div id="redactor-modal-body" />');
                    this.$modalFooter = $('<footer />');

                    this.$modal.append(this.$modalHeader);
                    this.$modal.append(this.$modalClose);
                    this.$modal.append(this.$modalBody);
                    this.$modal.append(this.$modalFooter);
                    this.$modalBox.append(this.$modal);
                    this.$modalBox.appendTo(document.body);
                },
                buildOverlay: function()
                {
                    this.$modalOverlay = $('<div id="redactor-modal-overlay">').hide();
                    $('body').prepend(this.$modalOverlay);
                },
                enableEvents: function()
                {
                    this.$modalClose.on('click.redactor-modal', $.proxy(this.modal.close, this));
                    $(document).on('keyup.redactor-modal', $.proxy(this.modal.closeHandler, this));
                    this.$editor.on('keyup.redactor-modal', $.proxy(this.modal.closeHandler, this));
                    this.$modalBox.on('click.redactor-modal', $.proxy(this.modal.close, this));
                },
                disableEvents: function()
                {
                    this.$modalClose.off('click.redactor-modal');
                    $(document).off('keyup.redactor-modal');
                    this.$editor.off('keyup.redactor-modal');
                    this.$modalBox.off('click.redactor-modal');
                    $(window).off('resize.redactor-modal');
                },
                closeHandler: function(e)
                {
                    if (e.which != this.keyCode.ESC) return;

                    this.modal.close(false);
                },
                close: function(e)
                {
                    if (e)
                    {
                        if (!$(e.target).hasClass('redactor-modal-close-btn') && e.target != this.$modalClose[0] && e.target != this.$modalBox[0])
                        {
                            return;
                        }

                        e.preventDefault();
                    }

                    if (!this.$modalBox) return;

                    this.modal.disableEvents();

                    this.$modalOverlay.remove();

                    this.$modalBox.fadeOut('fast', $.proxy(function()
                    {
                        this.$modalBox.remove();

                        setTimeout($.proxy(this.utils.restoreScroll, this), 0);

                        if (e !== undefined) this.selection.restore();

                        $(document.body).css('overflow', this.modal.bodyOveflow);
                        this.core.setCallback('modalClosed', this.modal.templateName);

                    }, this));

                }
            };
        },
        observe: function()
        {
            return {
                load: function()
                {
                    this.observe.images();
                    this.observe.links();
                },
                buttons: function(e, btnName)
                {
                    var current = this.selection.getCurrent();
                    var parent = this.selection.getParent();

                    if (e !== false)
                    {
                        this.button.setInactiveAll();
                    }
                    else
                    {
                        this.button.setInactiveAll(btnName);
                    }

                    if (e === false && btnName !== 'html')
                    {
                        if ($.inArray(btnName, this.opts.activeButtons) != -1) this.button.toggleActive(btnName);
                        return;
                    }

                    //var linkButtonName = (this.utils.isCurrentOrParent('A')) ? this.lang.get('link_edit') : this.lang.get('link_insert');
                    //$('body').find('a.redactor-dropdown-link').text(linkButtonName);

                    $.each(this.opts.activeButtonsStates, $.proxy(function(key, value)
                    {
                        var parentEl = $(parent).closest(key, this.$editor[0]);
                        var currentEl = $(current).closest(key, this.$editor[0]);

                        if (parentEl.length !== 0 && !this.utils.isRedactorParent(parentEl)) return;
                        if (!this.utils.isRedactorParent(currentEl)) return;
                        if (parentEl.length !== 0 || currentEl.closest(key, this.$editor[0]).length !== 0)
                        {
                            this.button.setActive(value);
                        }

                    }, this));

                    var $parent = $(parent).closest(this.opts.alignmentTags.toString().toLowerCase(), this.$editor[0]);
                    if (this.utils.isRedactorParent(parent) && $parent.length)
                    {
                        var align = ($parent.css('text-align') === '') ? 'left' : $parent.css('text-align');
                        this.button.setActive('align' + align);
                    }
                },
                addButton: function(tag, btnName)
                {
                    this.opts.activeButtons.push(btnName);
                    this.opts.activeButtonsStates[tag] = btnName;
                },
                images: function()
                {
                    this.$editor.find('img').each($.proxy(function(i, img)
                    {
                        var $img = $(img);

                        // IE fix (when we clicked on an image and then press backspace IE does goes to image's url)
                        $img.closest('a', this.$editor[0]).on('click', function(e) { e.preventDefault(); });

                        if (this.utils.browser('msie')) $img.attr('unselectable', 'on');

                        this.image.setEditable($img);

                    }, this));

                    $(document).on('click.redactor-image-delete.' + this.uuid, $.proxy(function(e)
                    {
                        this.observe.image = false;
                        if (e.target.tagName == 'IMG' && this.utils.isRedactorParent(e.target))
                        {
                            this.observe.image = (this.observe.image && this.observe.image == e.target) ? false : e.target;
                        }

                    }, this));

                },
                links: function()
                {
                    if (!this.opts.linkTooltip) return;

                    this.$editor.find('a').on('touchstart.redactor.' + this.uuid + ' click.redactor.' + this.uuid, $.proxy(this.observe.showTooltip, this));
                    this.$editor.on('touchstart.redactor.' + this.uuid + ' click.redactor.' + this.uuid, $.proxy(this.observe.closeTooltip, this));
                    $(document).on('touchstart.redactor.' + this.uuid + ' click.redactor.' + this.uuid, $.proxy(this.observe.closeTooltip, this));
                },
                getTooltipPosition: function($link)
                {
                    return $link.offset();
                },
                showTooltip: function(e)
                {
                    var $el = $(e.target);

                    if ($el[0].tagName == 'IMG')
                        return;

                    if ($el[0].tagName !== 'A')
                        $el = $el.closest('a', this.$editor[0]);

                    if ($el[0].tagName !== 'A')
                        return;

                    var $link = $el;

                    var pos = this.observe.getTooltipPosition($link);
                    var tooltip = $('<span class="redactor-link-tooltip"></span>');

                    var href = $link.attr('href');
                    if (href === undefined)
                    {
                        href = '';
                    }

                    if (href.length > 24) href = href.substring(0, 24) + '...';

                    var aLink = $('<a href="' + $link.attr('href') + '" target="_blank" />').html(href).addClass('redactor-link-tooltip-action');
                    var aEdit = $('<a href="#" />').html(this.lang.get('edit')).on('click', $.proxy(this.link.show, this)).addClass('redactor-link-tooltip-action');
                    var aUnlink = $('<a href="#" />').html(this.lang.get('unlink')).on('click', $.proxy(this.link.unlink, this)).addClass('redactor-link-tooltip-action');

                    tooltip.append(aLink).append(' | ').append(aEdit).append(' | ').append(aUnlink);
                    tooltip.css({
                        top: (pos.top + parseInt($link.css('line-height'), 10)) + 'px',
                        left: pos.left + 'px'
                    });

                    $('.redactor-link-tooltip').remove();
                    $('body').append(tooltip);
                },
                closeTooltip: function(e)
                {
                    e = e.originalEvent || e;

                    var target = e.target;
                    var $parent = $(target).closest('a', this.$editor[0]);
                    if ($parent.length !== 0 && $parent[0].tagName === 'A' && target.tagName !== 'A')
                    {
                        return;
                    }
                    else if ((target.tagName === 'A' && this.utils.isRedactorParent(target)) || $(target).hasClass('redactor-link-tooltip-action'))
                    {
                        return;
                    }

                    $('.redactor-link-tooltip').remove();
                }

            };
        },
        paragraphize: function()
        {
            return {
                load: function(html)
                {
                    if (this.opts.linebreaks) return html;
                    if (html === '' || html === '<p></p>') return this.opts.emptyHtml;

                    html = html + "\n";

                    this.paragraphize.safes = [];
                    this.paragraphize.z = 0;

                    html = html.replace(/(<br\s?\/?>){1,}\n?<\/blockquote>/gi, '</blockquote>');

                    html = this.paragraphize.getSafes(html);
                    html = this.paragraphize.getSafesComments(html);
                    html = this.paragraphize.replaceBreaksToNewLines(html);
                    html = this.paragraphize.replaceBreaksToParagraphs(html);
                    html = this.paragraphize.clear(html);
                    html = this.paragraphize.restoreSafes(html);

                    html = html.replace(new RegExp('<br\\s?/?>\n?<(' + this.opts.paragraphizeBlocks.join('|') + ')(.*?[^>])>', 'gi'), '<p><br /></p>\n<$1$2>');

                    return $.trim(html);
                },
                getSafes: function(html)
                {
                    var $div = $('<div />').append(html);

                    // remove paragraphs in blockquotes
                    $div.find('blockquote p').replaceWith(function()
                    {
                        return $(this).append('<br />').contents();
                    });

                    html = $div.html();

                    $div.find(this.opts.paragraphizeBlocks.join(', ')).each($.proxy(function(i,s)
                    {
                        this.paragraphize.z++;
                        this.paragraphize.safes[this.paragraphize.z] = s.outerHTML;
                        html = html.replace(s.outerHTML, '\n{replace' + this.paragraphize.z + '}');

                    }, this));

                    return html;
                },
                getSafesComments: function(html)
                {
                    var commentsMatches = html.match(/<!--([\w\W]*?)-->/gi);

                    if (!commentsMatches) return html;

                    $.each(commentsMatches, $.proxy(function(i,s)
                    {
                        this.paragraphize.z++;
                        this.paragraphize.safes[this.paragraphize.z] = s;
                        html = html.replace(s, '\n{replace' + this.paragraphize.z + '}');
                    }, this));

                    return html;
                },
                restoreSafes: function(html)
                {
                    $.each(this.paragraphize.safes, function(i,s)
                    {
                        s = (typeof s !== 'undefined') ? s.replace(/\$/g, '&#36;') : s;
                        html = html.replace('{replace' + i + '}', s);

                    });

                    return html;
                },
                replaceBreaksToParagraphs: function(html)
                {
                    var htmls = html.split(new RegExp('\n', 'g'), -1);

                    html = '';
                    if (htmls)
                    {
                        var len = htmls.length;
                        for (var i = 0; i < len; i++)
                        {
                            if (!htmls.hasOwnProperty(i)) return;

                            if (htmls[i].search('{replace') == -1)
                            {
                                htmls[i] = htmls[i].replace(/<p>\n\t?<\/p>/gi, '');
                                htmls[i] = htmls[i].replace(/<p><\/p>/gi, '');

                                if (htmls[i] !== '')
                                {
                                    html += '<p>' +  htmls[i].replace(/^\n+|\n+$/g, "") + "</p>";
                                }
                            }
                            else html += htmls[i];
                        }
                    }

                    return html;
                },
                replaceBreaksToNewLines: function(html)
                {
                    html = html.replace(/<br \/>\s*<br \/>/gi, "\n\n");
                    html = html.replace(/<br\s?\/?>\n?<br\s?\/?>/gi, "\n<br /><br />");

                    html = html.replace(new RegExp("\r\n", 'g'), "\n");
                    html = html.replace(new RegExp("\r", 'g'), "\n");
                    html = html.replace(new RegExp("/\n\n+/"), 'g', "\n\n");

                    return html;
                },
                clear: function(html)
                {
                    html = html.replace(new RegExp('</blockquote></p>', 'gi'), '</blockquote>');
                    html = html.replace(new RegExp('<p></blockquote>', 'gi'), '</blockquote>');
                    html = html.replace(new RegExp('<p><blockquote>', 'gi'), '<blockquote>');
                    html = html.replace(new RegExp('<blockquote></p>', 'gi'), '<blockquote>');

                    html = html.replace(new RegExp('<p><p ', 'gi'), '<p ');
                    html = html.replace(new RegExp('<p><p>', 'gi'), '<p>');
                    html = html.replace(new RegExp('</p></p>', 'gi'), '</p>');
                    html = html.replace(new RegExp('<p>\\s?</p>', 'gi'), '');
                    html = html.replace(new RegExp("\n</p>", 'gi'), '</p>');
                    html = html.replace(new RegExp('<p>\t?\t?\n?<p>', 'gi'), '<p>');
                    html = html.replace(new RegExp('<p>\t*</p>', 'gi'), '');

                    return html;
                }
            };
        },
        paste: function()
        {
            return {
                init: function(e)
                {
                    if (!this.opts.cleanOnPaste)
                    {
                        setTimeout($.proxy(this.code.sync, this), 1);
                        return;
                    }

                    this.rtePaste = true;

                    this.buffer.set();
                    this.selection.save();
                    this.utils.saveScroll();

                    this.paste.createPasteBox();

                    $(window).on('scroll.redactor-freeze', $.proxy(function()
                    {
                        $(window).scrollTop(this.saveBodyScroll);

                    }, this));

                    setTimeout($.proxy(function()
                    {
                        var html = this.$pasteBox.html();

                        this.$pasteBox.remove();

                        this.selection.restore();
                        this.utils.restoreScroll();

                        this.paste.insert(html);

                        $(window).off('scroll.redactor-freeze');

                        if (this.linkify.isEnabled())
                            this.linkify.format();

                    }, this), 1);
                },
                createPasteBox: function()
                {
                    this.$pasteBox = $('<div>').html('').attr('contenteditable', 'true').css({ position: 'fixed', width: 0, top: 0, left: '-9999px' });

                    if (this.utils.browser('msie'))
                    {
                        this.$box.append(this.$pasteBox);
                    }
                    else
                    {
                        $('body').append(this.$pasteBox);
                    }

                    this.$pasteBox.focus();
                },
                insert: function(html)
                {
                    html = this.core.setCallback('pasteBefore', html);

                    // clean
                    html = (this.utils.isSelectAll()) ? this.clean.onPaste(html, false) : this.clean.onPaste(html);

                    html = this.core.setCallback('paste', html);

                    if (this.utils.isSelectAll())
                    {
                        this.insert.set(html, false);
                    }
                    else
                    {
                        this.insert.html(html, false);
                    }

                    this.utils.disableSelectAll();
                    this.rtePaste = false;

                    setTimeout($.proxy(this.clean.clearUnverified, this), 10);

                    // clean empty spans
                    setTimeout($.proxy(function()
                    {
                        var spans = this.$editor.find('span');
                        $.each(spans, function(i,s)
                        {
                            var html = s.innerHTML.replace(/[\u200B-\u200D\uFEFF]/, '');
                            if (html === '' && s.attributes.length === 0) $(s).remove();

                        });

                    }, this), 10);
                }
            };
        },
        placeholder: function()
        {
            return {
                enable: function()
                {
                    if (!this.placeholder.is()) return;

                    this.$editor.attr('placeholder', this.$element.attr('placeholder'));

                    this.placeholder.toggle();
                    this.$editor.on('keyup.redactor-placeholder', $.proxy(this.placeholder.toggle, this));

                },
                toggle: function()
                {
                    var func = 'removeClass';
                    if (this.utils.isEmpty(this.$editor.html(), false)) func = 'addClass';
                    this.$editor[func]('redactor-placeholder');
                },
                remove: function()
                {
                    this.$editor.removeClass('redactor-placeholder');
                },
                is: function()
                {
                    if (this.opts.placeholder)
                    {
                        return this.$element.attr('placeholder', this.opts.placeholder);
                    }
                    else
                    {
                        return !(typeof this.$element.attr('placeholder') == 'undefined' || this.$element.attr('placeholder') === '');
                    }
                }
            };
        },
        progress: function()
        {
            return {
                show: function()
                {
                    $(document.body).append($('<div id="redactor-progress"><span></span></div>'));
                    $('#redactor-progress').fadeIn();
                },
                hide: function()
                {
                    $('#redactor-progress').fadeOut(1500, function()
                    {
                        $(this).remove();
                    });
                }

            };
        },
        selection: function()
        {
            return {
                get: function()
                {
                    this.sel = document.getSelection();

                    if (document.getSelection && this.sel.getRangeAt && this.sel.rangeCount)
                    {
                        this.range = this.sel.getRangeAt(0);
                    }
                    else
                    {
                        this.range = document.createRange();
                    }
                },
                addRange: function()
                {
                    try {
                        this.sel.removeAllRanges();
                    } catch (e) {}

                    this.sel.addRange(this.range);
                },
                getCurrent: function()
                {
                    var el = false;
                    this.selection.get();

                    if (this.sel && this.sel.rangeCount > 0)
                    {
                        el = this.sel.getRangeAt(0).startContainer;
                    }

                    return this.utils.isRedactorParent(el);
                },
                getParent: function(elem)
                {
                    elem = elem || this.selection.getCurrent();
                    if (elem)
                    {
                        return this.utils.isRedactorParent($(elem).parent()[0]);
                    }

                    return false;
                },
                getBlock: function(node)
                {
                    node = node || this.selection.getCurrent();

                    while (node)
                    {
                        if (this.utils.isBlockTag(node.tagName))
                        {
                            return ($(node).hasClass('redactor-editor')) ? false : node;
                        }

                        node = node.parentNode;
                    }

                    return false;
                },
                getInlines: function(nodes, tags)
                {
                    this.selection.get();

                    if (this.range && this.range.collapsed)
                    {
                        return false;
                    }

                    var inlines = [];
                    nodes = (typeof nodes == 'undefined' || nodes === false) ? this.selection.getNodes() : nodes;
                    var inlineTags = this.opts.inlineTags;
                    inlineTags.push('span');

                    if (typeof tags !== 'undefined')
                    {
                        for (var i = 0; i < tags.length; i++)
                        {
                            inlineTags.push(tags[i]);
                        }
                    }

                    $.each(nodes, $.proxy(function(i,node)
                    {
                        if ($.inArray(node.tagName.toLowerCase(), inlineTags) != -1)
                        {
                            inlines.push(node);
                        }

                    }, this));

                    return (inlines.length === 0) ? false : inlines;
                },
                getInlinesTags: function(tags)
                {
                    this.selection.get();

                    if (this.range && this.range.collapsed)
                    {
                        return false;
                    }

                    var inlines = [];
                    var nodes =  this.selection.getNodes();
                    $.each(nodes, $.proxy(function(i,node)
                    {
                        if ($.inArray(node.tagName.toLowerCase(), tags) != -1)
                        {
                            inlines.push(node);
                        }

                    }, this));

                    return (inlines.length === 0) ? false : inlines;
                },
                getBlocks: function(nodes)
                {
                    this.selection.get();

                    if (this.range && this.range.collapsed)
                    {
                        return [this.selection.getBlock()];
                    }

                    var blocks = [];
                    nodes = (typeof nodes == 'undefined') ? this.selection.getNodes() : nodes;
                    $.each(nodes, $.proxy(function(i,node)
                    {
                        if (this.utils.isBlock(node))
                        {
                            this.selection.lastBlock = node;
                            blocks.push(node);
                        }

                    }, this));

                    return (blocks.length === 0) ? [this.selection.getBlock()] : blocks;
                },
                getLastBlock: function()
                {
                    return this.selection.lastBlock;
                },
                getNodes: function()
                {
                    this.selection.get();

                    var startNode = this.selection.getNodesMarker(1);
                    var endNode = this.selection.getNodesMarker(2);
                    var range = this.range.cloneRange();

                    if (this.range.collapsed === false)
                    {
                        var startContainer = range.startContainer;
                        var startOffset = range.startOffset;

                        // end marker
                        this.selection.setNodesMarker(range, endNode, false);

                        // start marker
                        range.setStart(startContainer, startOffset);
                        this.selection.setNodesMarker(range, startNode, true);
                    }
                    else
                    {
                        this.selection.setNodesMarker(range, startNode, true);
                        endNode = startNode;
                    }

                    var nodes = [];
                    var counter = 0;

                    var self = this;
                    this.$editor.find('*').each(function()
                    {
                        if (this == startNode)
                        {
                            var parent = $(this).parent();
                            if (parent.length !== 0 && parent[0].tagName != 'BODY' && self.utils.isRedactorParent(parent[0]))
                            {
                                nodes.push(parent[0]);
                            }

                            nodes.push(this);
                            counter = 1;
                        }
                        else
                        {
                            if (counter > 0)
                            {
                                nodes.push(this);
                                counter = counter + 1;
                            }
                        }

                        if (this == endNode)
                        {
                            return false;
                        }

                    });

                    var finalNodes = [];
                    var len = nodes.length;
                    for (var i = 0; i < len; i++)
                    {
                        if (nodes[i].id != 'nodes-marker-1' && nodes[i].id != 'nodes-marker-2')
                        {
                            finalNodes.push(nodes[i]);
                        }
                    }

                    this.selection.removeNodesMarkers();

                    return finalNodes;

                },
                getNodesMarker: function(num)
                {
                    return $('<span id="nodes-marker-' + num + '" class="redactor-nodes-marker" data-verified="redactor">' + this.opts.invisibleSpace + '</span>')[0];
                },
                setNodesMarker: function(range, node, type)
                {
                    try {
                        range.collapse(type);
                        range.insertNode(node);
                    }
                    catch (e) {}
                },
                removeNodesMarkers: function()
                {
                    $(document).find('span.redactor-nodes-marker').remove();
                    this.$editor.find('span.redactor-nodes-marker').remove();
                },
                fromPoint: function(start, end)
                {
                    this.caret.setOffset(start, end);
                },
                wrap: function(tag)
                {
                    this.selection.get();

                    if (this.range.collapsed) return false;

                    var wrapper = document.createElement(tag);
                    wrapper.appendChild(this.range.extractContents());
                    this.range.insertNode(wrapper);

                    return wrapper;
                },
                selectElement: function(node)
                {
                    this.caret.set(node, 0, node, 1);
                },
                selectAll: function()
                {
                    this.selection.get();
                    this.range.selectNodeContents(this.$editor[0]);
                    this.selection.addRange();
                },
                remove: function()
                {
                    this.selection.get();
                    this.sel.removeAllRanges();
                },
                save: function()
                {
                    this.selection.createMarkers();
                },
                createMarkers: function()
                {
                    this.selection.get();

                    var node1 = this.selection.getMarker(1);

                    this.selection.setMarker(this.range, node1, true);

                    if (this.range.collapsed === false)
                    {
                        var node2 = this.selection.getMarker(2);
                        this.selection.setMarker(this.range, node2, false);
                    }

                    this.savedSel = this.$editor.html();
                },
                getMarker: function(num)
                {
                    if (typeof num == 'undefined') num = 1;

                    return $('<span id="selection-marker-' + num + '" class="redactor-selection-marker"  data-verified="redactor">' + this.opts.invisibleSpace + '</span>')[0];
                },
                getMarkerAsHtml: function(num)
                {
                    return this.utils.getOuterHtml(this.selection.getMarker(num));
                },
                setMarker: function(range, node, type)
                {
                    range = range.cloneRange();

                    try {
                        range.collapse(type);
                        range.insertNode(node);
                    }
                    catch (e)
                    {
                        this.focus.setStart();
                    }
                },
                restore: function()
                {
                    var node1 = this.$editor.find('span#selection-marker-1');
                    var node2 = this.$editor.find('span#selection-marker-2');

                    if (node1.length !== 0 && node2.length !== 0)
                    {
                        this.caret.set(node1, 0, node2, 0);
                    }
                    else if (node1.length !== 0)
                    {
                        this.caret.set(node1, 0, node1, 0);
                    }
                    else
                    {
                        this.$editor.focus();
                    }

                    this.selection.removeMarkers();
                    this.savedSel = false;

                },
                removeMarkers: function()
                {
                    this.$editor.find('span.redactor-selection-marker').each(function(i,s)
                    {
                        var text = $(s).text().replace(/[\u200B-\u200D\uFEFF]/g, '');
                        if (text === '') $(s).remove();
                        else $(s).replaceWith(function() { return $(this).contents(); });
                    });
                },
                getText: function()
                {
                    this.selection.get();

                    return this.sel.toString();
                },
                getHtml: function()
                {
                    var html = '';

                    this.selection.get();
                    if (this.sel.rangeCount)
                    {
                        var container = document.createElement('div');
                        var len = this.sel.rangeCount;
                        for (var i = 0; i < len; ++i)
                        {
                            container.appendChild(this.sel.getRangeAt(i).cloneContents());
                        }

                        html = container.innerHTML;
                    }

                    return this.clean.onSync(html);
                },
                replaceWithHtml: function(html)
                {
                    html = this.selection.getMarkerAsHtml(1) + html + this.selection.getMarkerAsHtml(2);

                    this.selection.get();

                    if (window.getSelection && window.getSelection().getRangeAt)
                    {
                        this.range.deleteContents();
                        var div = document.createElement("div");
                        div.innerHTML = html;

                        var frag = document.createDocumentFragment(), child;
                        while ((child = div.firstChild))
                        {
                            frag.appendChild(child);
                        }

                        this.range.insertNode(frag);
                    }
                    else if (document.selection && document.selection.createRange)
                    {
                        this.range.pasteHTML(html);
                    }

                    this.selection.restore();
                    this.code.sync();
                }
            };
        },
        shortcuts: function()
        {
            return {
                init: function(e, key)
                {
                    // disable browser's hot keys for bold and italic
                    if (!this.opts.shortcuts)
                    {
                        if ((e.ctrlKey || e.metaKey) && (key === 66 || key === 73)) e.preventDefault();
                        return false;
                    }

                    $.each(this.opts.shortcuts, $.proxy(function(str, command)
                    {
                        var keys = str.split(',');
                        var len = keys.length;
                        for (var i = 0; i < len; i++)
                        {
                            if (typeof keys[i] === 'string')
                            {
                                this.shortcuts.handler(e, $.trim(keys[i]), $.proxy(function()
                                {
                                    var func;
                                    if (command.func.search(/\./) != '-1')
                                    {
                                        func = command.func.split('.');
                                        if (typeof this[func[0]] != 'undefined')
                                        {
                                            this[func[0]][func[1]].apply(this, command.params);
                                        }
                                    }
                                    else
                                    {
                                        this[command.func].apply(this, command.params);
                                    }

                                }, this));
                            }

                        }

                    }, this));
                },
                handler: function(e, keys, origHandler)
                {
                    // based on https://github.com/jeresig/jquery.hotkeys
                    var hotkeysSpecialKeys =
                    {
                        8: "backspace", 9: "tab", 10: "return", 13: "return", 16: "shift", 17: "ctrl", 18: "alt", 19: "pause",
                        20: "capslock", 27: "esc", 32: "space", 33: "pageup", 34: "pagedown", 35: "end", 36: "home",
                        37: "left", 38: "up", 39: "right", 40: "down", 45: "insert", 46: "del", 59: ";", 61: "=",
                        96: "0", 97: "1", 98: "2", 99: "3", 100: "4", 101: "5", 102: "6", 103: "7",
                        104: "8", 105: "9", 106: "*", 107: "+", 109: "-", 110: ".", 111 : "/",
                        112: "f1", 113: "f2", 114: "f3", 115: "f4", 116: "f5", 117: "f6", 118: "f7", 119: "f8",
                        120: "f9", 121: "f10", 122: "f11", 123: "f12", 144: "numlock", 145: "scroll", 173: "-", 186: ";", 187: "=",
                        188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", 221: "]", 222: "'"
                    };


                    var hotkeysShiftNums =
                    {
                        "`": "~", "1": "!", "2": "@", "3": "#", "4": "$", "5": "%", "6": "^", "7": "&",
                        "8": "*", "9": "(", "0": ")", "-": "_", "=": "+", ";": ": ", "'": "\"", ",": "<",
                        ".": ">",  "/": "?",  "\\": "|"
                    };

                    keys = keys.toLowerCase().split(" ");
                    var special = hotkeysSpecialKeys[e.keyCode],
                        character = String.fromCharCode( e.which ).toLowerCase(),
                        modif = "", possible = {};

                    $.each([ "alt", "ctrl", "meta", "shift"], function(index, specialKey)
                    {
                        if (e[specialKey + 'Key'] && special !== specialKey)
                        {
                            modif += specialKey + '+';
                        }
                    });


                    if (special) possible[modif + special] = true;
                    if (character)
                    {
                        possible[modif + character] = true;
                        possible[modif + hotkeysShiftNums[character]] = true;

                        // "$" can be triggered as "Shift+4" or "Shift+$" or just "$"
                        if (modif === "shift+")
                        {
                            possible[hotkeysShiftNums[character]] = true;
                        }
                    }

                    for (var i = 0, len = keys.length; i < len; i++)
                    {
                        if (possible[keys[i]])
                        {
                            e.preventDefault();
                            return origHandler.apply(this, arguments);
                        }
                    }
                }
            };
        },
        tabifier: function()
        {
            return {
                get: function(code)
                {
                    if (!this.opts.tabifier) return code;

                    // clean setup
                    var ownLine = ['area', 'body', 'head', 'hr', 'i?frame', 'link', 'meta', 'noscript', 'style', 'script', 'table', 'tbody', 'thead', 'tfoot'];
                    var contOwnLine = ['li', 'dt', 'dt', 'h[1-6]', 'option', 'script'];
                    var newLevel = ['p', 'blockquote', 'div', 'dl', 'fieldset', 'form', 'frameset', 'map', 'ol', 'pre', 'select', 'td', 'th', 'tr', 'ul'];

                    this.tabifier.lineBefore = new RegExp('^<(/?' + ownLine.join('|/?' ) + '|' + contOwnLine.join('|') + ')[ >]');
                    this.tabifier.lineAfter = new RegExp('^<(br|/?' + ownLine.join('|/?' ) + '|/' + contOwnLine.join('|/') + ')[ >]');
                    this.tabifier.newLevel = new RegExp('^</?(' + newLevel.join('|' ) + ')[ >]');

                    var i = 0,
                    codeLength = code.length,
                    point = 0,
                    start = null,
                    end = null,
                    tag = '',
                    out = '',
                    cont = '';

                    this.tabifier.cleanlevel = 0;

                    for (; i < codeLength; i++)
                    {
                        point = i;

                        // if no more tags, copy and exit
                        if (-1 == code.substr(i).indexOf( '<' ))
                        {
                            out += code.substr(i);

                            return this.tabifier.finish(out);
                        }

                        // copy verbatim until a tag
                        while (point < codeLength && code.charAt(point) != '<')
                        {
                            point++;
                        }

                        if (i != point)
                        {
                            cont = code.substr(i, point - i);
                            if (!cont.match(/^\s{2,}$/g))
                            {
                                if ('\n' == out.charAt(out.length - 1)) out += this.tabifier.getTabs();
                                else if ('\n' == cont.charAt(0))
                                {
                                    out += '\n' + this.tabifier.getTabs();
                                    cont = cont.replace(/^\s+/, '');
                                }

                                out += cont;
                            }

                            if (cont.match(/\n/)) out += '\n' + this.tabifier.getTabs();
                        }

                        start = point;

                        // find the end of the tag
                        while (point < codeLength && '>' != code.charAt(point))
                        {
                            point++;
                        }

                        tag = code.substr(start, point - start);
                        i = point;

                        var t;

                        if ('!--' == tag.substr(1, 3))
                        {
                            if (!tag.match(/--$/))
                            {
                                while ('-->' != code.substr(point, 3))
                                {
                                    point++;
                                }
                                point += 2;
                                tag = code.substr(start, point - start);
                                i = point;
                            }

                            if ('\n' != out.charAt(out.length - 1)) out += '\n';

                            out += this.tabifier.getTabs();
                            out += tag + '>\n';
                        }
                        else if ('!' == tag[1])
                        {
                            out = this.tabifier.placeTag(tag + '>', out);
                        }
                        else if ('?' == tag[1])
                        {
                            out += tag + '>\n';
                        }
                        else if (t = tag.match(/^<(script|style|pre)/i))
                        {
                            t[1] = t[1].toLowerCase();
                            tag = this.tabifier.cleanTag(tag);
                            out = this.tabifier.placeTag(tag, out);
                            end = String(code.substr(i + 1)).toLowerCase().indexOf('</' + t[1]);

                            if (end)
                            {
                                cont = code.substr(i + 1, end);
                                i += end;
                                out += cont;
                            }
                        }
                        else
                        {
                            tag = this.tabifier.cleanTag(tag);
                            out = this.tabifier.placeTag(tag, out);
                        }
                    }

                    return this.tabifier.finish(out);
                },
                getTabs: function()
                {
                    var s = '';
                    for ( var j = 0; j < this.tabifier.cleanlevel; j++ )
                    {
                        s += '\t';
                    }

                    return s;
                },
                finish: function(code)
                {
                    code = code.replace(/\n\s*\n/g, '\n');
                    code = code.replace(/^[\s\n]*/, '');
                    code = code.replace(/[\s\n]*$/, '');
                    code = code.replace(/<script(.*?)>\n<\/script>/gi, '<script$1></script>');

                    this.tabifier.cleanlevel = 0;

                    return code;
                },
                cleanTag: function (tag)
                {
                    var tagout = '';
                    tag = tag.replace(/\n/g, ' ');
                    tag = tag.replace(/\s{2,}/g, ' ');
                    tag = tag.replace(/^\s+|\s+$/g, ' ');

                    var suffix = '';
                    if (tag.match(/\/$/))
                    {
                        suffix = '/';
                        tag = tag.replace(/\/+$/, '');
                    }

                    var m;
                    while (m = /\s*([^= ]+)(?:=((['"']).*?\3|[^ ]+))?/.exec(tag))
                    {
                        if (m[2]) tagout += m[1].toLowerCase() + '=' + m[2];
                        else if (m[1]) tagout += m[1].toLowerCase();

                        tagout += ' ';
                        tag = tag.substr(m[0].length);
                    }

                    return tagout.replace(/\s*$/, '') + suffix + '>';
                },
                placeTag: function (tag, out)
                {
                    var nl = tag.match(this.tabifier.newLevel);

                    if (tag.match(this.tabifier.lineBefore) || nl)
                    {
                        out = out.replace(/\s*$/, '');
                        out += '\n';
                    }

                    if (nl && '/' == tag.charAt(1)) this.tabifier.cleanlevel--;
                    if ('\n' == out.charAt(out.length - 1)) out += this.tabifier.getTabs();
                    if (nl && '/' != tag.charAt(1)) this.tabifier.cleanlevel++;

                    out += tag;

                    if (tag.match(this.tabifier.lineAfter) || tag.match(this.tabifier.newLevel))
                    {
                        out = out.replace(/ *$/, '');
                        //out += '\n';
                    }

                    return out;
                }
            };
        },
        tidy: function()
        {
            return {
                setupAllowed: function()
                {
                    if (this.opts.allowedTags) this.opts.deniedTags = false;
                    if (this.opts.allowedAttr) this.opts.removeAttr = false;

                    if (this.opts.linebreaks) return;

                    var tags = ['p', 'section'];
                    if (this.opts.allowedTags) this.tidy.addToAllowed(tags);
                    if (this.opts.deniedTags) this.tidy.removeFromDenied(tags);

                },
                addToAllowed: function(tags)
                {
                    var len = tags.length;
                    for (var i = 0; i < len; i++)
                    {
                        if ($.inArray(tags[i], this.opts.allowedTags) == -1)
                        {
                            this.opts.allowedTags.push(tags[i]);
                        }
                    }
                },
                removeFromDenied: function(tags)
                {
                    var len = tags.length;
                    for (var i = 0; i < len; i++)
                    {
                        var pos = $.inArray(tags[i], this.opts.deniedTags);
                        if (pos != -1)
                        {
                            this.opts.deniedTags.splice(pos, 1);
                        }
                    }
                },
                load: function(html, options)
                {
                    this.tidy.settings = {
                        deniedTags: this.opts.deniedTags,
                        allowedTags: this.opts.allowedTags,
                        removeComments: this.opts.removeComments,
                        replaceTags: this.opts.replaceTags,
                        replaceStyles: this.opts.replaceStyles,
                        removeDataAttr: this.opts.removeDataAttr,
                        removeAttr: this.opts.removeAttr,
                        allowedAttr: this.opts.allowedAttr,
                        removeWithoutAttr: this.opts.removeWithoutAttr,
                        removeEmpty: this.opts.removeEmpty
                    };

                    $.extend(this.tidy.settings, options);

                    html = this.tidy.removeComments(html);

                    // create container
                    this.tidy.$div = $('<div />').append(html);

                    // clean
                    this.tidy.replaceTags();
                    this.tidy.replaceStyles();
                    this.tidy.removeTags();

                    this.tidy.removeAttr();
                    this.tidy.removeEmpty();
                    this.tidy.removeParagraphsInLists();
                    this.tidy.removeDataAttr();
                    this.tidy.removeWithoutAttr();
                    
                    html = this.tidy.$div.html();
                    
                    // START BLC MODIFICATION
                    // The existing Redactor code does the right thing above in the onSync method and the resulting
                    // HTML that is passed to tidy correctly replaces the unicode with their html entities. However,
                    // the above invocation ($div.html()) decodes the HTML entities to replace them with their unicode
                    // representation. Because of this, unicode is actually saved into the database which is bad (poor browser
                    // and OS support). The easy fix here is to just copy the onSync functionality that already does the
                    // right thing down here.
                    var chars = {
                           '\u2122': '&trade;',
                           '\u00a9': '&copy;',
                           '\u2026': '&hellip;',
                           '\u2014': '&mdash;',
                           '\u2010': '&dash;',
                           '\u00ae': '&reg;'
                    };
                    // replace special characters
                    $.each(chars, function(i,s)
                    {
                        html = html.replace(new RegExp(i, 'g'), s);
                    });
                    // END BLC MODIFICATION
                    
                    this.tidy.$div.remove();

                    return html;
                },
                removeComments: function(html)
                {
                    if (!this.tidy.settings.removeComments) return html;

                    return html.replace(/<!--[\s\S]*?-->/gi, '');
                },
                replaceTags: function(html)
                {
                    if (!this.tidy.settings.replaceTags) return html;

                    var len = this.tidy.settings.replaceTags.length;
                    var replacement = [], rTags = [];
                    for (var i = 0; i < len; i++)
                    {
                        rTags.push(this.tidy.settings.replaceTags[i][1]);
                        replacement.push(this.tidy.settings.replaceTags[i][0]);
                    }

                    $.each(replacement, $.proxy(function(key, value)
                    {
                        this.tidy.$div.find(value).replaceWith(function()
                        {
                            return $("<" + rTags[key] + " />", {html: $(this).html()});
                        });
                    }, this));
                },
                replaceStyles: function()
                {
                    if (!this.tidy.settings.replaceStyles) return;

                    var len = this.tidy.settings.replaceStyles.length;
                    this.tidy.$div.find('span').each($.proxy(function(n,s)
                    {
                        var $el = $(s);
                        var style = $el.attr('style');
                        for (var i = 0; i < len; i++)
                        {
                            if (style && style.match(new RegExp('^' + this.tidy.settings.replaceStyles[i][0], 'i')))
                            {
                                var tagName = this.tidy.settings.replaceStyles[i][1];
                                $el.replaceWith(function()
                                {
                                    var tag = document.createElement(tagName);
                                    return $(tag).append($(this).contents());
                                });
                            }
                        }

                    }, this));

                },
                removeTags: function()
                {
                    if (!this.tidy.settings.deniedTags && this.tidy.settings.allowedTags)
                    {
                        this.tidy.$div.find('*').not(this.tidy.settings.allowedTags.join(',')).each(function(i, s)
                        {
                            if (s.innerHTML === '') $(s).remove();
                            else $(s).contents().unwrap();
                        });
                    }

                    if (this.tidy.settings.deniedTags)
                    {
                        this.tidy.$div.find(this.tidy.settings.deniedTags.join(',')).each(function(i, s)
                        {
                            if (s.innerHTML === '') $(s).remove();
                            else $(s).contents().unwrap();
                        });
                    }
                },
                removeAttr: function()
                {
                    var len;
                    if (!this.tidy.settings.removeAttr && this.tidy.settings.allowedAttr)
                    {

                        var allowedAttrTags = [], allowedAttrData = [];
                        len = this.tidy.settings.allowedAttr.length;
                        for (var i = 0; i < len; i++)
                        {
                            allowedAttrTags.push(this.tidy.settings.allowedAttr[i][0]);
                            allowedAttrData.push(this.tidy.settings.allowedAttr[i][1]);
                        }


                        this.tidy.$div.find('*').each($.proxy(function(n,s)
                        {
                            var $el = $(s);
                            var pos = $.inArray($el[0].tagName.toLowerCase(), allowedAttrTags);
                            var attributesRemove = this.tidy.removeAttrGetRemoves(pos, allowedAttrData, $el);

                            if (attributesRemove)
                            {
                                $.each(attributesRemove, function(z,f) {
                                    $el.removeAttr(f);
                                });
                            }
                        }, this));
                    }

                    if (this.tidy.settings.removeAttr)
                    {
                        len = this.tidy.settings.removeAttr.length;
                        for (var i = 0; i < len; i++)
                        {
                            var attrs = this.tidy.settings.removeAttr[i][1];
                            if ($.isArray(attrs)) attrs = attrs.join(' ');

                            this.tidy.$div.find(this.tidy.settings.removeAttr[i][0]).removeAttr(attrs);
                        }
                    }

                },
                removeAttrGetRemoves: function(pos, allowed, $el)
                {
                    var attributesRemove = [];

                    // remove all attrs
                    if (pos == -1)
                    {
                        $.each($el[0].attributes, function(i, item)
                        {
                            attributesRemove.push(item.name);
                        });

                    }
                    // allow all attrs
                    else if (allowed[pos] == '*')
                    {
                        attributesRemove = [];
                    }
                    // allow specific attrs
                    else
                    {
                        $.each($el[0].attributes, function(i, item)
                        {
                            if ($.isArray(allowed[pos]))
                            {
                                if ($.inArray(item.name, allowed[pos]) == -1)
                                {
                                    attributesRemove.push(item.name);
                                }
                            }
                            else if (allowed[pos] != item.name)
                            {
                                attributesRemove.push(item.name);
                            }

                        });
                    }

                    return attributesRemove;
                },
                removeAttrs: function (el, regex)
                {
                    regex = new RegExp(regex, "g");
                    return el.each(function()
                    {
                        var self = $(this);
                        var len = this.attributes.length - 1;
                        for (var i = len; i >= 0; i--)
                        {
                            var item = this.attributes[i];
                            if (item && item.specified && item.name.search(regex)>=0)
                            {
                                self.removeAttr(item.name);
                            }
                        }
                    });
                },
                removeEmpty: function()
                {
                    if (!this.tidy.settings.removeEmpty) return;

                    this.tidy.$div.find(this.tidy.settings.removeEmpty.join(',')).each(function()
                    {
                        var $el = $(this);
                        var text = $el.text();
                        text = text.replace(/[\u200B-\u200D\uFEFF]/g, '');
                        text = text.replace(/&nbsp;/gi, '');
                        text = text.replace(/\s/g, '');

                        if (text === '' && $el.children().length === 0)
                        {
                            $el.remove();
                        }
                    });
                },
                removeParagraphsInLists: function()
                {
                    this.tidy.$div.find('li p').contents().unwrap();
                },
                removeDataAttr: function()
                {
                    if (!this.tidy.settings.removeDataAttr) return;

                    var tags = this.tidy.settings.removeDataAttr;
                    if ($.isArray(this.tidy.settings.removeDataAttr)) tags = this.tidy.settings.removeDataAttr.join(',');

                    this.tidy.removeAttrs(this.tidy.$div.find(tags), '^(data-)');

                },
                removeWithoutAttr: function()
                {
                    if (!this.tidy.settings.removeWithoutAttr) return;

                    this.tidy.$div.find(this.tidy.settings.removeWithoutAttr.join(',')).each(function()
                    {
                        if (this.attributes.length === 0)
                        {
                            $(this).contents().unwrap();
                        }
                    });
                }
            };
        },
        toolbar: function()
        {
            return {
                init: function()
                {
                    return {
                        html:
                        {
                            title: this.lang.get('html'),
                            func: 'code.toggle'
                        },
                        formatting:
                        {
                            title: this.lang.get('formatting'),
                            dropdown:
                            {
                                p:
                                {
                                    title: this.lang.get('paragraph'),
                                    func: 'block.format'
                                },
                                blockquote:
                                {
                                    title: this.lang.get('quote'),
                                    func: 'block.format'
                                },
                                pre:
                                {
                                    title: this.lang.get('code'),
                                    func: 'block.format'
                                },
                                h1:
                                {
                                    title: this.lang.get('header1'),
                                    func: 'block.format'
                                },
                                h2:
                                {
                                    title: this.lang.get('header2'),
                                    func: 'block.format'
                                },
                                h3:
                                {
                                    title: this.lang.get('header3'),
                                    func: 'block.format'
                                },
                                h4:
                                {
                                    title: this.lang.get('header4'),
                                    func: 'block.format'
                                },
                                h5:
                                {
                                    title: this.lang.get('header5'),
                                    func: 'block.format'
                                }
                            }
                        },
                        bold:
                        {
                            title: this.lang.get('bold'),
                            func: 'inline.format'
                        },
                        italic:
                        {
                            title: this.lang.get('italic'),
                            func: 'inline.format'
                        },
                        deleted:
                        {
                            title: this.lang.get('deleted'),
                            func: 'inline.format'
                        },
                        underline:
                        {
                            title: this.lang.get('underline'),
                            func: 'inline.format'
                        },
                        unorderedlist:
                        {
                            title: '&bull; ' + this.lang.get('unorderedlist'),
                            func: 'list.toggle'
                        },
                        orderedlist:
                        {
                            title: '1. ' + this.lang.get('orderedlist'),
                            func: 'list.toggle'
                        },
                        outdent:
                        {
                            title: '< ' + this.lang.get('outdent'),
                            func: 'indent.decrease'
                        },
                        indent:
                        {
                            title: '> ' + this.lang.get('indent'),
                            func: 'indent.increase'
                        },
                        image:
                        {
                            title: this.lang.get('image'),
                            func: 'image.show'
                        },
                        file:
                        {
                            title: this.lang.get('file'),
                            func: 'file.show'
                        },
                        link:
                        {
                            title: this.lang.get('link'),
                            dropdown:
                            {
                                link:
                                {
                                    title: this.lang.get('link_insert'),
                                    func: 'link.show'
                                },
                                unlink:
                                {
                                    title: this.lang.get('unlink'),
                                    func: 'link.unlink'
                                }
                            }
                        },
                        alignment:
                        {
                            title: this.lang.get('alignment'),
                            dropdown:
                            {
                                left:
                                {
                                    title: this.lang.get('align_left'),
                                    func: 'alignment.left'
                                },
                                center:
                                {
                                    title: this.lang.get('align_center'),
                                    func: 'alignment.center'
                                },
                                right:
                                {
                                    title: this.lang.get('align_right'),
                                    func: 'alignment.right'
                                },
                                justify:
                                {
                                    title: this.lang.get('align_justify'),
                                    func: 'alignment.justify'
                                }
                            }
                        },
                        horizontalrule:
                        {
                            title: this.lang.get('horizontalrule'),
                            func: 'line.insert'
                        }
                    };
                },
                build: function()
                {
                    this.toolbar.hideButtons();
                    this.toolbar.hideButtonsOnMobile();
                    this.toolbar.isButtonSourceNeeded();

                    if (this.opts.buttons.length === 0) return;

                    this.$toolbar = this.toolbar.createContainer();

                    this.toolbar.setOverflow();
                    this.toolbar.append();
                    this.toolbar.setFormattingTags();
                    this.toolbar.loadButtons();
                    this.toolbar.setFixed();

                    // buttons response
                    if (this.opts.activeButtons)
                    {
                        this.$editor.on('mouseup.redactor keyup.redactor focus.redactor', $.proxy(this.observe.buttons, this));
                    }

                },
                createContainer: function()
                {
                    return $('<ul>').addClass('redactor-toolbar').attr('id', 'redactor-toolbar-' + this.uuid);
                },
                setFormattingTags: function()
                {
                    $.each(this.opts.toolbar.formatting.dropdown, $.proxy(function (i, s)
                    {
                        if ($.inArray(i, this.opts.formatting) == -1) delete this.opts.toolbar.formatting.dropdown[i];
                    }, this));

                },
                loadButtons: function()
                {
                    $.each(this.opts.buttons, $.proxy(function(i, btnName)
                    {
                        if (!this.opts.toolbar[btnName]) return;

                        if (btnName === 'file')
                        {
                             if (this.opts.fileUpload === false) return;
                             else if (!this.opts.fileUpload && this.opts.s3 === false) return;
                        }

                        if (btnName === 'image')
                        {
                             if (this.opts.imageUpload === false) return;
                             else if (!this.opts.imageUpload && this.opts.s3 === false) return;
                        }

                        var btnObject = this.opts.toolbar[btnName];
                        this.$toolbar.append($('<li>').append(this.button.build(btnName, btnObject)));

                    }, this));
                },
                append: function()
                {
                    if (this.opts.toolbarExternal)
                    {
                        this.$toolbar.addClass('redactor-toolbar-external');
                        $(this.opts.toolbarExternal).html(this.$toolbar);
                    }
                    else
                    {
                        this.$box.prepend(this.$toolbar);
                    }
                },
                setFixed: function()
                {
                    if (!this.utils.isDesktop()) return;
                    if (this.opts.toolbarExternal) return;
                    if (!this.opts.toolbarFixed) return;

                    this.toolbar.observeScroll();
                    $(this.opts.toolbarFixedTarget).on('scroll.redactor.' + this.uuid, $.proxy(this.toolbar.observeScroll, this));

                },
                setOverflow: function()
                {
                    if (this.utils.isMobile() && this.opts.toolbarOverflow)
                    {
                        this.$toolbar.addClass('redactor-toolbar-overflow');
                    }
                },
                isButtonSourceNeeded: function()
                {
                    if (this.opts.source) return;

                    var index = this.opts.buttons.indexOf('html');
                    if (index !== -1)
                    {
                        this.opts.buttons.splice(index, 1);
                    }
                },
                hideButtons: function()
                {
                    if (this.opts.buttonsHide.length === 0) return;

                    $.each(this.opts.buttonsHide, $.proxy(function(i, s)
                    {
                        var index = this.opts.buttons.indexOf(s);
                        this.opts.buttons.splice(index, 1);

                    }, this));
                },
                hideButtonsOnMobile: function()
                {
                    if (!this.utils.isMobile() || this.opts.buttonsHideOnMobile.length === 0) return;

                    $.each(this.opts.buttonsHideOnMobile, $.proxy(function(i, s)
                    {
                        var index = this.opts.buttons.indexOf(s);
                        this.opts.buttons.splice(index, 1);

                    }, this));
                },
                observeScroll: function()
                {
                    var scrollTop = $(this.opts.toolbarFixedTarget).scrollTop();
                    var boxTop = 1;

                    if (this.opts.toolbarFixedTarget === document)
                    {
                        boxTop = this.$box.offset().top;
                    }

                    if (scrollTop > boxTop)
                    {
                        this.toolbar.observeScrollEnable(scrollTop, boxTop);
                    }
                    else
                    {
                        this.toolbar.observeScrollDisable();
                    }
                },
                observeScrollEnable: function(scrollTop, boxTop)
                {
                    var top = this.opts.toolbarFixedTopOffset + scrollTop - boxTop;
                    var left = 0;
                    var end = boxTop + this.$box.height() - 32;
                    var width = this.$box.innerWidth();

                    this.$toolbar.addClass('toolbar-fixed-box');
                    this.$toolbar.css({
                        position: 'absolute',
                        width: width,
                        top: top + 'px',
                        left: left
                    });

                    if (scrollTop > end)
                        $('.redactor-dropdown-' + this.uuid + ':visible').hide();

                    this.toolbar.setDropdownsFixed();
                    this.$toolbar.css('visibility', (scrollTop < end) ? 'visible' : 'hidden');
                },
                observeScrollDisable: function()
                {
                    this.$toolbar.css({
                        position: 'relative',
                        width: 'auto',
                        top: 0,
                        left: 0,
                        visibility: 'visible'
                    });

                    this.toolbar.unsetDropdownsFixed();
                    this.$toolbar.removeClass('toolbar-fixed-box');
                },
                setDropdownsFixed: function()
                {
                    var top = this.$toolbar.innerHeight() + this.opts.toolbarFixedTopOffset;
                    var position = 'fixed';
                    if (this.opts.toolbarFixedTarget !== document)
                    {
                        top = (this.$toolbar.innerHeight() + this.$toolbar.offset().top) + this.opts.toolbarFixedTopOffset;
                        position = 'absolute';
                    }

                    $('.redactor-dropdown-' + this.uuid).each(function()
                    {
                        $(this).css({ position: position, top: top + 'px' });
                    });
                },
                unsetDropdownsFixed: function()
                {
                    var top = (this.$toolbar.innerHeight() + this.$toolbar.offset().top);
                    $('.redactor-dropdown-' + this.uuid).each(function()
                    {
                        $(this).css({ position: 'absolute', top: top + 'px' });
                    });
                }
            };
        },
        upload: function()
        {
            return {
                init: function(id, url, callback)
                {
                    this.upload.direct = false;
                    this.upload.callback = callback;
                    this.upload.url = url;
                    this.upload.$el = $(id);
                    this.upload.$droparea = $('<div id="redactor-droparea" />');

                    this.upload.$placeholdler = $('<div id="redactor-droparea-placeholder" />').text(this.lang.get('upload_label'));
                    this.upload.$input = $('<input type="file" name="file" />');

                    this.upload.$placeholdler.append(this.upload.$input);
                    this.upload.$droparea.append(this.upload.$placeholdler);
                    this.upload.$el.append(this.upload.$droparea);

                    this.upload.$droparea.off('redactor.upload');
                    this.upload.$input.off('redactor.upload');

                    this.upload.$droparea.on('dragover.redactor.upload', $.proxy(this.upload.onDrag, this));
                    this.upload.$droparea.on('dragleave.redactor.upload', $.proxy(this.upload.onDragLeave, this));

                    // change
                    this.upload.$input.on('change.redactor.upload', $.proxy(function(e)
                    {
                        e = e.originalEvent || e;
                        this.upload.traverseFile(this.upload.$input[0].files[0], e);
                    }, this));

                    // drop
                    this.upload.$droparea.on('drop.redactor.upload', $.proxy(function(e)
                    {
                        e.preventDefault();

                        this.upload.$droparea.removeClass('drag-hover').addClass('drag-drop');
                        this.upload.onDrop(e);

                    }, this));
                },
                directUpload: function(file, e)
                {
                    this.upload.direct = true;
                    this.upload.traverseFile(file, e);
                },
                onDrop: function(e)
                {
                    e = e.originalEvent || e;
                    var files = e.dataTransfer.files;

                    this.upload.traverseFile(files[0], e);
                },
                traverseFile: function(file, e)
                {
                    if (this.opts.s3)
                    {
                        this.upload.setConfig(file);
                        this.upload.s3uploadFile(file);
                        return;
                    }

                    var formData = !!window.FormData ? new FormData() : null;
                    if (window.FormData)
                    {
                        this.upload.setConfig(file);

                        var name = (this.upload.type == 'image') ? this.opts.imageUploadParam : this.opts.fileUploadParam;
                        formData.append(name, file);
                    }

                    this.progress.show();
                    this.core.setCallback('uploadStart', e, formData);
                    this.upload.sendData(formData, e);
                },
                setConfig: function(file)
                {
                    this.upload.getType(file);

                    if (this.upload.direct)
                    {
                        this.upload.url = (this.upload.type == 'image') ? this.opts.imageUpload : this.opts.fileUpload;
                        this.upload.callback = (this.upload.type == 'image') ? this.image.insert : this.file.insert;
                    }
                },
                getType: function(file)
                {
                    this.upload.type = 'image';
                    if (this.opts.imageTypes.indexOf(file.type) == -1)
                    {
                        this.upload.type = 'file';
                    }
                },
                getHiddenFields: function(obj, fd)
                {
                    if (obj === false || typeof obj !== 'object') return fd;

                    $.each(obj, $.proxy(function(k, v)
                    {
                        if (v !== null && v.toString().indexOf('#') === 0) v = $(v).val();
                        fd.append(k, v);

                    }, this));

                    return fd;

                },
                sendData: function(formData, e)
                {
                    // append hidden fields
                    if (this.upload.type == 'image')
                    {
                        formData = this.upload.getHiddenFields(this.opts.uploadImageFields, formData);
                        formData = this.upload.getHiddenFields(this.upload.imageFields, formData);
                    }
                    else
                    {
                        formData = this.upload.getHiddenFields(this.opts.uploadFileFields, formData);
                        formData = this.upload.getHiddenFields(this.upload.fileFields, formData);
                    }

                    var xhr = new XMLHttpRequest();
                    xhr.open('POST', this.upload.url);
                    xhr.setRequestHeader("X-Requested-With", "XMLHttpRequest");

                    // complete
                    xhr.onreadystatechange = $.proxy(function()
                    {
                        if (xhr.readyState == 4)
                        {
                            var data = xhr.responseText;

                            data = data.replace(/^\[/, '');
                            data = data.replace(/\]$/, '');

                            var json;
                            try
                            {
                                json = (typeof data === 'string' ? $.parseJSON(data) : data);
                            }
                            catch(err)
                            {
                                json = {
                                    error: true
                                };
                            }


                            this.progress.hide();

                            if (!this.upload.direct)
                            {
                                this.upload.$droparea.removeClass('drag-drop');
                            }

                            this.upload.callback(json, this.upload.direct, e);
                        }
                    }, this);


                    /*
                    xhr.upload.onprogress = $.proxy(function(e)
                    {
                        if (e.lengthComputable)
                        {
                            var complete = (e.loaded / e.total * 100 | 0);
                            //progress.value = progress.innerHTML = complete;
                        }

                    }, this);
                    */


                    xhr.send(formData);
                },
                onDrag: function(e)
                {
                    e.preventDefault();
                    this.upload.$droparea.addClass('drag-hover');
                },
                onDragLeave: function(e)
                {
                    e.preventDefault();
                    this.upload.$droparea.removeClass('drag-hover');
                },
                clearImageFields: function()
                {
                    this.upload.imageFields = {};
                },
                addImageFields: function(name, value)
                {
                    this.upload.imageFields[name] = value;
                },
                removeImageFields: function(name)
                {
                    delete this.upload.imageFields[name];
                },
                clearFileFields: function()
                {
                    this.upload.fileFields = {};
                },
                addFileFields: function(name, value)
                {
                    this.upload.fileFields[name] = value;
                },
                removeFileFields: function(name)
                {
                    delete this.upload.fileFields[name];
                },


                // S3
                s3uploadFile: function(file)
                {
                    this.upload.s3executeOnSignedUrl(file, $.proxy(function(signedURL)
                    {
                        this.upload.s3uploadToS3(file, signedURL);
                    }, this));
                },
                s3executeOnSignedUrl: function(file, callback)
                {
                    var xhr = new XMLHttpRequest();

                    var mark = '?';
                    if (this.opts.s3.search(/\?/) != '-1') mark = '&';

                    xhr.open('GET', this.opts.s3 + mark + 'name=' + file.name + '&type=' + file.type, true);

                    // Hack to pass bytes through unprocessed.
                    if (xhr.overrideMimeType) xhr.overrideMimeType('text/plain; charset=x-user-defined');

                    var that = this;
                    xhr.onreadystatechange = function(e)
                    {
                        if (this.readyState == 4 && this.status == 200)
                        {
                            that.progress.show();
                            callback(decodeURIComponent(this.responseText));
                        }
                        else if (this.readyState == 4 && this.status != 200)
                        {
                            //setProgress(0, 'Could not contact signing script. Status = ' + this.status);
                        }
                    };

                    xhr.send();
                },
                s3createCORSRequest: function(method, url)
                {
                    var xhr = new XMLHttpRequest();
                    if ("withCredentials" in xhr)
                    {
                        xhr.open(method, url, true);
                    }
                    else if (typeof XDomainRequest != "undefined")
                    {
                        xhr = new XDomainRequest();
                        xhr.open(method, url);
                    }
                    else
                    {
                        xhr = null;
                    }

                    return xhr;
                },
                s3uploadToS3: function(file, url)
                {
                    var xhr = this.upload.s3createCORSRequest('PUT', url);
                    if (!xhr)
                    {
                        //setProgress(0, 'CORS not supported');
                    }
                    else
                    {
                        xhr.onload = $.proxy(function()
                        {
                            if (xhr.status == 200)
                            {
                                //setProgress(100, 'Upload completed.');

                                this.progress.hide();

                                var s3file = url.split('?');

                                if (!s3file[0])
                                {
                                     // url parsing is fail
                                     return false;
                                }


                                if (!this.upload.direct)
                                {
                                    this.upload.$droparea.removeClass('drag-drop');
                                }

                                var json = { filelink: s3file[0] };
                                if (this.upload.type == 'file')
                                {
                                    var arr = s3file[0].split('/');
                                    json.filename = arr[arr.length-1];
                                }

                                this.upload.callback(json, this.upload.direct, false);


                            }
                            else
                            {
                                //setProgress(0, 'Upload error: ' + xhr.status);
                            }
                        }, this);

                        xhr.onerror = function()
                        {
                            //setProgress(0, 'XHR error.');
                        };

                        xhr.upload.onprogress = function(e)
                        {
                            /*
                            if (e.lengthComputable)
                            {
                                var percentLoaded = Math.round((e.loaded / e.total) * 100);
                                setProgress(percentLoaded, percentLoaded == 100 ? 'Finalizing.' : 'Uploading.');
                            }
                            */
                        };

                        xhr.setRequestHeader('Content-Type', file.type);
                        xhr.setRequestHeader('x-amz-acl', 'public-read');

                        xhr.send(file);
                    }
                }
            };
        },
        utils: function()
        {
            return {
                isMobile: function()
                {
                    return /(iPhone|iPod|BlackBerry|Android)/.test(navigator.userAgent);
                },
                isDesktop: function()
                {
                    return !/(iPhone|iPod|iPad|BlackBerry|Android)/.test(navigator.userAgent);
                },
                isString: function(obj)
                {
                    return Object.prototype.toString.call(obj) == '[object String]';
                },
                isEmpty: function(html, removeEmptyTags)
                {
                    html = html.replace(/[\u200B-\u200D\uFEFF]/g, '');
                    html = html.replace(/&nbsp;/gi, '');
                    html = html.replace(/<\/?br\s?\/?>/g, '');
                    html = html.replace(/\s/g, '');
                    html = html.replace(/^<p>[^\W\w\D\d]*?<\/p>$/i, '');
                    html = html.replace(/<iframe(.*?[^>])>$/i, 'iframe');
                    html = html.replace(/<source(.*?[^>])>$/i, 'source');

                    // remove empty tags
                    if (removeEmptyTags !== false)
                    {
                        html = html.replace(/<[^\/>][^>]*><\/[^>]+>/gi, '');
                        html = html.replace(/<[^\/>][^>]*><\/[^>]+>/gi, '');
                    }

                    html = $.trim(html);

                    return html === '';
                },
                normalize: function(str)
                {
                    if (typeof(str) === 'undefined') return 0;
                    return parseInt(str.replace('px',''), 10);
                },
                hexToRgb: function(hex)
                {
                    if (typeof hex == 'undefined') return;
                    if (hex.search(/^#/) == -1) return hex;

                    var shorthandRegex = /^#?([a-f\d])([a-f\d])([a-f\d])$/i;
                    hex = hex.replace(shorthandRegex, function(m, r, g, b)
                    {
                        return r + r + g + g + b + b;
                    });

                    var result = /^#?([a-f\d]{2})([a-f\d]{2})([a-f\d]{2})$/i.exec(hex);
                    return 'rgb(' + parseInt(result[1], 16) + ', ' + parseInt(result[2], 16) + ', ' + parseInt(result[3], 16) + ')';
                },
                getOuterHtml: function(el)
                {
                    return $('<div>').append($(el).eq(0).clone()).html();
                },
                getAlignmentElement: function(el)
                {
                    if ($.inArray(el.tagName, this.opts.alignmentTags) !== -1)
                    {
                        return $(el);
                    }
                    else
                    {
                        return $(el).closest(this.opts.alignmentTags.toString().toLowerCase(), this.$editor[0]);
                    }
                },
                removeEmptyAttr: function(el, attr)
                {
                    var $el = $(el);
                    if (typeof $el.attr(attr) == 'undefined')
                    {
                        return true;
                    }

                    if ($el.attr(attr) === '')
                    {
                        $el.removeAttr(attr);
                        return true;
                    }

                    return false;
                },
                removeEmpty: function(i, s)
                {
                    var $s = $($.parseHTML(s));

                    $s.find('.redactor-invisible-space').removeAttr('style').removeAttr('class');

                    if ($s.find('hr, br, img, iframe, source').length !== 0) return;
                    var text = $.trim($s.text());

                    if (this.utils.isEmpty(text, false))
                    {
                        $s.remove();
                    }
                },

                // save and restore scroll
                saveScroll: function()
                {
                    this.saveEditorScroll = this.$editor.scrollTop();
                    this.saveBodyScroll = $(window).scrollTop();

                    if (this.opts.scrollTarget) this.saveTargetScroll = $(this.opts.scrollTarget).scrollTop();
                },
                restoreScroll: function()
                {
                    if (typeof this.saveScroll === 'undefined' && typeof this.saveBodyScroll === 'undefined') return;

                    $(window).scrollTop(this.saveBodyScroll);
                    this.$editor.scrollTop(this.saveEditorScroll);

                    if (this.opts.scrollTarget) $(this.opts.scrollTarget).scrollTop(this.saveTargetScroll);
                },

                // get invisible space element
                createSpaceElement: function()
                {
                    var space = document.createElement('span');
                    space.className = 'redactor-invisible-space';
                    space.innerHTML = this.opts.invisibleSpace;

                    return space;
                },

                // replace
                removeInlineTags: function(node)
                {
                    var tags = this.opts.inlineTags;
                    tags.push('span');

                    if (node.tagName == 'PRE') tags.push('a');

                    $(node).find(tags.join(',')).not('span.redactor-selection-marker').contents().unwrap();
                },
                replaceWithContents: function(node, removeInlineTags)
                {
                    var self = this;
                    $(node).replaceWith(function()
                    {
                        if (removeInlineTags === true) self.utils.removeInlineTags(this);

                        return $(this).contents();
                    });

                    return $(node);
                },
                replaceToTag: function(node, tag, removeInlineTags)
                {
                    var replacement;
                    var self = this;
                    $(node).replaceWith(function()
                    {
                        replacement = $('<' + tag + ' />').append($(this).contents());

                        for (var i = 0; i < this.attributes.length; i++)
                        {
                            replacement.attr(this.attributes[i].name, this.attributes[i].value);
                        }

                        if (removeInlineTags === true) self.utils.removeInlineTags(replacement);

                        return replacement;
                    });

                    return replacement;
                },

                // start and end of element
                isStartOfElement: function()
                {
                    var block = this.selection.getBlock();
                    if (!block) return false;

                    var offset = this.caret.getOffsetOfElement(block);

                    return (offset === 0) ? true : false;
                },
                isEndOfElement: function(element)
                {
                    if (typeof element == 'undefined')
                    {
                        var element = this.selection.getBlock();
                        if (!element) return false;
                    }

                    var offset = this.caret.getOffsetOfElement(element);
                    var text = $.trim($(element).text()).replace(/\n\r\n/g, '');

                    return (offset == text.length) ? true : false;
                },
                isEndOfEditor: function()
                {
                    var block = this.$editor[0];

                    var offset = this.caret.getOffsetOfElement(block);
                    var text = $.trim($(block).html().replace(/(<([^>]+)>)/gi,''));

                    return (offset == text.length) ? true : false;
                },

                // test blocks
                isBlock: function(block)
                {
                    block = block[0] || block;

                    return block && this.utils.isBlockTag(block.tagName);
                },
                isBlockTag: function(tag)
                {
                    if (typeof tag == 'undefined') return false;

                    return this.reIsBlock.test(tag);
                },

                // tag detection
                isTag: function(current, tag)
                {
                    var element = $(current).closest(tag, this.$editor[0]);
                    if (element.length == 1)
                    {
                        return element[0];
                    }

                    return false;
                },

                // select all
                isSelectAll: function()
                {
                    return this.selectAll;
                },
                enableSelectAll: function()
                {
                    this.selectAll = true;
                },
                disableSelectAll: function()
                {
                    this.selectAll = false;
                },

                // parents detection
                isRedactorParent: function(el)
                {
                    if (!el)
                    {
                        return false;
                    }

                    if ($(el).parents('.redactor-editor').length === 0 || $(el).hasClass('redactor-editor'))
                    {
                        return false;
                    }

                    return el;
                },
                isCurrentOrParentHeader: function()
                {
                    return this.utils.isCurrentOrParent(['H1', 'H2', 'H3', 'H4', 'H5', 'H6']);
                },
                isCurrentOrParent: function(tagName)
                {
                    var parent = this.selection.getParent();
                    var current = this.selection.getCurrent();

                    if ($.isArray(tagName))
                    {
                        var matched = 0;
                        $.each(tagName, $.proxy(function(i, s)
                        {
                            if (this.utils.isCurrentOrParentOne(current, parent, s))
                            {
                                matched++;
                            }
                        }, this));

                        return (matched === 0) ? false : true;
                    }
                    else
                    {
                        return this.utils.isCurrentOrParentOne(current, parent, tagName);
                    }
                },
                isCurrentOrParentOne: function(current, parent, tagName)
                {
                    tagName = tagName.toUpperCase();

                    return parent && parent.tagName === tagName ? parent : current && current.tagName === tagName ? current : false;
                },


                // browsers detection
                isOldIe: function()
                {
                    return (this.utils.browser('msie') && parseInt(this.utils.browser('version'), 10) < 9) ? true : false;
                },
                isLessIe10: function()
                {
                    return (this.utils.browser('msie') && parseInt(this.utils.browser('version'), 10) < 10) ? true : false;
                },
                isIe11: function()
                {
                    return !!navigator.userAgent.match(/Trident\/7\./);
                },
                browser: function(browser)
                {
                    var ua = navigator.userAgent.toLowerCase();
                    var match = /(opr)[\/]([\w.]+)/.exec( ua ) ||
                    /(chrome)[ \/]([\w.]+)/.exec( ua ) ||
                    /(webkit)[ \/]([\w.]+).*(safari)[ \/]([\w.]+)/.exec(ua) ||
                    /(webkit)[ \/]([\w.]+)/.exec( ua ) ||
                    /(opera)(?:.*version|)[ \/]([\w.]+)/.exec( ua ) ||
                    /(msie) ([\w.]+)/.exec( ua ) ||
                    ua.indexOf("trident") >= 0 && /(rv)(?::| )([\w.]+)/.exec( ua ) ||
                    ua.indexOf("compatible") < 0 && /(mozilla)(?:.*? rv:([\w.]+)|)/.exec( ua ) ||
                    [];

                    if (browser == 'safari') return (typeof match[3] != 'undefined') ? match[3] == 'safari' : false;
                    if (browser == 'version') return match[2];
                    if (browser == 'webkit') return (match[1] == 'chrome' || match[1] == 'opr' || match[1] == 'webkit');
                    if (match[1] == 'rv') return browser == 'msie';
                    if (match[1] == 'opr') return browser == 'webkit';

                    return browser == match[1];
                }
            };
        },
        linkify: function()
        {
            return {
                isKey: function(key)
                {
                    return key == this.keyCode.ENTER || key == this.keyCode.SPACE;
                },
                isEnabled: function()
                {
                    return this.opts.convertLinks && (this.opts.convertUrlLinks || this.opts.convertImageLinks || this.opts.convertVideoLinks) && !this.utils.isCurrentOrParent('PRE');
                },
                format: function()
                {
                    var linkify = this.linkify,
                        opts    = this.opts;

                    this.$editor
                        .find(":not(iframe,img,a,pre)")
                        .addBack()
                        .contents()
                        .filter(function()
                        {
                            return this.nodeType === 3 && $.trim(this.nodeValue) != "" && !$(this).parent().is("pre") && (this.nodeValue.match(opts.linkify.regexps.youtube) || this.nodeValue.match(opts.linkify.regexps.vimeo) || this.nodeValue.match(opts.linkify.regexps.image) || this.nodeValue.match(opts.linkify.regexps.url));
                        })
                        .each(function()
                        {
                            var text = $(this).text(),
                                html = text;

                            if (opts.convertVideoLinks && (html.match(opts.linkify.regexps.youtube) || html.match(opts.linkify.regexps.vimeo)) )
                            {
                                html = linkify.convertVideoLinks(html);
                            }
                            else if (opts.convertImageLinks && html.match(opts.linkify.regexps.image))
                            {
                                html = linkify.convertImages(html);
                            }
                            else if (opts.convertUrlLinks)
                            {
                                html = linkify.convertLinks(html);
                            }

                            $(this).before(text.replace(text, html))
                                   .remove();
                        });

                    this.linkify.after();
                },
                convertVideoLinks: function(html)
                {
                    var iframeStart = '<iframe width="500" height="281" src="',
                        iframeEnd = '" frameborder="0" allowfullscreen></iframe>';

                    if (html.match(this.opts.linkify.regexps.youtube))
                    {
                        html = html.replace(this.opts.linkify.regexps.youtube, iframeStart + '//www.youtube.com/embed/$1' + iframeEnd);
                    }

                    if (html.match(this.opts.linkify.regexps.vimeo))
                    {
                        html = html.replace(this.opts.linkify.regexps.vimeo, iframeStart + '//player.vimeo.com/video/$2' + iframeEnd);
                    }

                    return html;
                },
                convertImages: function(html)
                {
                    var matches = html.match(this.opts.linkify.regexps.image);

                    if (matches)
                    {
                        html = html.replace(html, '<img src="' + matches + '" />');
                    }

                    return html;
                },
                convertLinks: function(html)
                {
                    var matches = html.match(this.opts.linkify.regexps.url);

                    if (matches)
                    {
                        matches = $.grep(matches, function(v, k) { return $.inArray(v, matches) === k; });

                        var length = matches.length;

                        for (var i = 0; i < length; i++)
                        {
                            var href = matches[i],
                                text = href,
                                linkProtocol = this.opts.linkProtocol + '://';

                            if (href.match(/(https?|ftp):\/\//i) !== null)
                            {
                                linkProtocol = "";
                            }

                            if (text.length > this.opts.linkSize)
                            {
                                text = text.substring(0, this.opts.linkSize) + '...';
                            }

                            text = decodeURIComponent(text);

                            var regexB = "\\b";

                            if ($.inArray(href.slice(-1), ["/", "&", "="]) != -1)
                            {
                                regexB = "";
                            }

                            // escaping url
                            var regexp = new RegExp('(' + href.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&") + regexB + ')', 'g');

                            html = html.replace(regexp, '<a href="' + linkProtocol + $.trim(href) + '">' + $.trim(text) + '</a>');
                        }
                    }

                    return html;
                },
                after: function()
                {
                    this.observe.load();
                    this.code.sync();
                }
            }
        }
    };

    $(window).on('load.tools.redactor', function()
    {
        $('[data-tools="redactor"]').redactor();
    });

    // constructor
    Redactor.prototype.init.prototype = Redactor.prototype;
})(jQuery);